Chapter 5: Soft Algorithm
The economics textbook was a dense brick of jargon. Equilibrium displacement. Pareto inefficiency. The words swam on the page, their meaning dissolved by the relentless loop playing in my head: Meilin’s cool hands under my sweater, the decisive click of my dorm room door, the bitter aftertaste of her coffee.
The Babson library study room was a sterile, silent cube. The only sound was the oscillating hum of a space heater fighting a losing battle against the New England winter seeping through the window. I’d come here to escape—from Elise’s knowing looks, from my own room with its ghosts of two different coffees—but my mind was its own echo chamber.
A soft knock on the glass door broke the loop. Kenji stood there, his face slightly blurred through the frosted pane, a hesitant smile on his lips and a stack of books under his arm. He lifted a hand in a small wave.
My heart did a complicated, guilty twist. I waved him in.
“Hey,” he said, slipping inside and closing the door with a quiet snick. He shrugged off his puffer coat, revealing a soft-looking grey sweater. “They said this room was booked. Hope you don’t mind some company.”
“No, it’s fine. I was just… drowning in market failures.”
“A noble death.” He took the seat kitty-corner to mine, not directly opposite, a considerate distance that still felt close. He set his books down: Political Economy of East Asia, Sustainable Supply Chain Management. He’d really done it. He’d really cross-registered.
“You weren’t kidding about the reading list,” he said, thumbing through the monstrous textbook. “This makes our entrepreneurship texts look like beach reading.”
“Told you.” I tried to smile. It felt stiff on my face.
He looked at me, his warm brown eyes softening. “You okay? You seem a little… elsewhere.”
I am. I was in a dimly lit dorm room, my back against a desk. I am also here, with you, in a beige library cube. “Just tired. Long week.”
He nodded, accepting it. “Well, maybe I can help. Two brains, one overly complex socioeconomic problem.” He pulled his chair a little closer, the legs scraping softly on the linoleum. “Where are you stuck?”
We started to work. He was surprisingly sharp, cutting through the academic sludge with practical, real-world questions. “So if this tariff structure collapses, it’s not just a line on a graph, right? It’s like… a fisherman in Hokkaido losing his market, which means he can’t pay his dock fees, which means…”
“…the local economy supporting the dockyard collapses,” I finished, a real spark of interest cutting through my fog. “A cascade failure.”
“Exactly!” His smile was genuine, illuminating his whole face. “See? You get it. It’s about the human stack underneath the numbers.”
The human stack. Meilin would have scoffed at the term, called it sentimental. But hearing Kenji say it, watching his hands gesture as he sketched invisible supply chains in the air, felt important. It felt connected to the reason I wanted to study this in the first place.
Time blurred. We passed pages back and forth, debated policy impacts, our voices low murmurs in the quiet. His focus was different from hers—not a laser dissecting a specimen, but a wide-beam flashlight, trying to see all the corners of a room.
At one point, I reached for my highlighter at the same instant he did. Our fingers brushed. He didn’t pull away. A simple, warm point of contact. My eyes flicked up to his. He was already looking at me.
“Sorry,” he whispered, though he didn’t sound sorry.
“It’s okay.” I didn’t move my hand.
He turned his hand over, palm up, an invitation. I let my fingers settle into his. His skin was smooth, his grip firm but gentle. He ran his thumb over my knuckles, a slow, thoughtful sweep. The gesture was so tender it hurt.
“Your hands are cold,” he said softly.
“The heater’s losing.”
He kept stroking my knuckles with his thumb, a hypnotic rhythm. The hum of the heater filled the silence. I could see the individual shades of brown in his irises, the soft curve of his lower lip. This was it. This was the softness I’d fantasized about in abstract. It was happening, and it was lovely, and a part of me was screaming from a distant, frozen room.
“Vy,” he murmured, his voice barely a breath. “I know I’m… a lot. And I know this is probably complicated. But being near you… it makes everything else feel simple.”
He was offering me simplicity. A clear path. A walking partner. A study date. A boy who brought mochi and told you how he felt in plain, sweet sentences.
I leaned in. It was a small movement, a surrendering of the few inches between us. His breath hitched, a tiny, vulnerable sound. It was nothing like Meilin’s confident, assessing stillness. This was an open question.
I answered it.
I kissed him.
It was soft. It was sweet. His lips were warm and yielding. He tasted faintly of chamomile tea and mint. His hand came up to cradle my jaw, his touch reverent. It was a kiss from a different world. A world of gentle morning light, not of charged midnight. It was uncomplicated affection, and for a dozen heartbeats, I let myself sink into it. I let myself want it.
When we pulled apart, he rested his forehead against mine, his eyes closed. “Wow,” he breathed.
A nervous laugh escaped me. “Yeah.”
He opened his eyes. They were shining. “Stay,” he whispered. “The library’s open late for exam prep. Stay past curfew. We can just… keep studying. Or not.”
Stay. A simple word. A choice.
My phone, face-down on the economics textbook, lit up. The screen cast a blueish glow on the pages of Equilibrium Displacement. It buzzed once, a violent shudder against the paper.
Kenji’s gaze flicked down to it, then back to my face. His expression didn’t change, but I felt the shift in the air between us. The new, fragile thing we’d just built now had a crack in it.
I knew without looking who it was. Only one person texted with such single, peremptory buzzes.
“You should get that,” he said softly, pulling back. His thumb brushed my cheek once, a farewell. “Might be important.”
“It’s not.”
“It might be.” There was no accusation in his voice. Just a gentle, painful understanding.
Reluctantly, I picked up the phone. The message was stark against the bright screen.
m.lin: Your logistic regression model is flawed. You’ve conflated correlation with causality in the third dataset. Meet me in the sub-basement. Now.
A cold clarity washed over me, shocking in its intensity. It was a critique of the project we’d just started. She’d already looked at my work. She’d found an error. She was summoning me.
And I wanted to go.
The desire was a sharp, physical pull in my chest, stronger than the warmth still lingering on my lips from Kenji’s kiss. It was the urge to step back into the labyrinth, to have my mind tested and sharpened, to be in that cold, humming room where I felt both dissected and seen in a way I never had before.
Kenji was watching me. He saw the decision on my face before I said a word. His own face fell, just a little, the brightness dimming like a dial had been turned down.
“You have to go,” he stated.
“I… she’s my project partner. It’s… it’s time-sensitive.” The lie was pathetic.
He nodded slowly, gathering his books. “The experiment calls.”
The word experiment hung in the air, a grenade with the pin pulled. He’d heard me use it. He knew.
“Kenji, it’s not like that.”
“Isn’t it?” He stood up, putting on his coat. He still smiled, but it didn’t reach his eyes anymore. “It’s okay, Vy. Really. Go be brilliant.” He zipped his coat, the sound loud in the quiet room. “Our walking arrangement for Tuesday… is that still on?”
He was giving me an out. A clean, kind escape. I could say no. I could choose the simple path.
“Yes,” I heard myself say. “It’s still on.”
“Good.” He hefted his books. “I’ll see you then.”
He left without another look back. The door sighed shut behind him, leaving me alone with the hum of the heater and the ghost of his chamomile scent.
I looked down at the phone again. The words “Now” glowed up at me.
I grabbed my bag, my coat, my own stack of books. My hands were shaking. I had just kissed someone wonderful. Someone kind. And I was leaving him to go to a concrete sub-basement because a girl who treated human interaction like a data stream had found a flaw in my code.
As I hurried out into the biting cold, the image of Kenji’s soft, wounded smile burned behind my eyes. I had gotten what I thought I wanted. I had felt the soft features, the pretty smile.
And I was running straight back to the sharp edges.
And I was running straight back to the sharp edges.
The MIT shuttle was a ghost train at this hour, nearly empty. I stared at my reflection in the dark window, my lips still feeling the phantom pressure of two different kisses. One soft and searching. One hard and conclusive. The taste of Kenji’s chamomile tea was a faint, floral memory under the sharper, lingering bite of Meilin’s coffee.
My phone buzzed again in my coat pocket. I flinched.
It was Kenji. The preview text glowed: It’s okay about the tea. Really.
I closed my eyes. The scene in the study room crashed back. His whispered stay past curfew. The warmth of his hand. My leaning in. The sweet, vulnerable hitch in his breath. Then my phone, lighting up with her summons, a cold blue verdict. I’d jerked back, my elbow connecting with my own forgotten mug.
The ceramic cup had toppled. A wave of hot chamomile tea cascaded across the table, a golden flood over his open textbook, his neatly printed notes, the sleeve of his soft grey sweater.
“Shit!” The curse ripped from me, loud in the silent room.
I’d scrambled for napkins, my hands clumsy with panic. “I’m so sorry. God, Kenji, I’m so sorry.”
“It’s fine, it’s okay, it’s just tea.” He’d said it gently, already blotting the pages with his own sleeve, trying to save the ink from blurring. But his movements were rushed, hurt. The spell was irrevocably broken, washed away by the spill.
“Your notes…” I’d moaned, pressing a sopping napkin to the pooling liquid.
“They’re just notes.” He hadn’t looked at me. “You should go. You’re going to be late.”
Now, on the shuddering bus, I typed back. I ruined your book. And your sweater.
Three dots appeared. Then: Books dry. Sweaters wash. Go do your work.
His kindness was a gut-punch. It felt like forgiveness I hadn’t earned and didn’t know how to accept. I stared at the message until the screen went black, my reflection in the glass looking pale and split.
The sub-basement corridor was a throat of concrete and buzzing fluorescents. The hum here was deeper than the library’s heater, a foundational vibration from building machinery. I pushed into the lab.
Meilin stood before the main display, her back to me. Financial networks formed a silent, psychedelic supernova on the screen. She didn’t turn.
“You conflated the IMF liquidity injections with the sovereign debt figures from the ECB,” she stated, her voice cutting through the hum. “It created a false positive for cascade resilience in your third model iteration.”
She finally glanced over her shoulder. Her eyes tracked from my face down to the damp, tea-colored patch staining the cuff of my coat. Her gaze was analytical, assessing.
“You’re late. And you have a contaminant on your sleeve.”
“Tea.” The word came out hoarse. “I spilled it.”
“I see.” She turned fully, leaning against the console. “The mochi-friend. Was he caffeinated or herbal?”
The directness was breathtaking. It left no room for the tangled guilt sitting in my chest. “Herbal. It doesn’t matter.”
“It does. Herbal suggests a calming agent. You were agitated when you left here earlier. Did it work?”
I walked further into the room, dropping my bag by a chair. “Are you asking if he calmed me down?”
“I’m asking for the data point.” She crossed her arms. The thermal shirt she wore was the same one from my dorm. The memory of its texture under my hands was suddenly vivid, clashing with the image of Kenji’s soaked sweater. “Your focus is fractured. It compromises the model.”
“Maybe the model was wrong to begin with.” I challenged, a sudden spike of defiance cutting through my confusion. “Maybe it’s trying to measure the wrong things.”
A faint line appeared between her brows. She pushed off the console and took two steps toward me. The cool, detached air around her seemed to shift, intensifying. “Define ‘wrong things.’”
“Feelings. Reactions. The…” I gestured vaguely, struggling for her lexicon. “The human stack underneath.”
She was close now. I could smell the clean, metallic scent of the lab on her, and underneath, a hint of soap. “Human emotional response is just a biological algorithm. Input. Processing. Output. It is measurable. Your output at the library was a spill. A physical manifestation of a systemic error.”
“The error was getting your text!” The words burst out, louder than the hum. “He was being… kind. And I was there. And then you called. And I left.”
She didn’t blink. “You chose to come here.”
“I had to. The project—”
“You didn’t have to.” Her interruption was swift, surgical. “You could have stayed. You could have drunk your herbal tea and repaired the social friction. You came here because you preferred the problem I presented. The clarity of it.”
It was the truth. A brutal, clean slice of it. I had no breath to argue.
“My model isn’t flawed, Vy.” Her voice dropped, losing its clinical edge, becoming almost quiet. “You are presenting conflicting data. You seek a predictable, warm input. But you are compelled by a complex, high-stakes processing challenge. You cannot optimize for both.”
“So what’s the solution?” I whispered. The room felt airless.
“Run a diagnostic. Isolate the variables.” Her hand came up, not touching me, but hovering near the tea stain on my coat. “Test them under controlled conditions.”
“And how do I do that?”
Her fingers finally made contact, but not on the stain. She brushed them, feather-light, against my lower lip. A shiver rocketed down my spine. “You’re already doing it,” she said. “The library was one test. This is another.”
Her kiss, when it came, was nothing like in my dorm. It wasn’t an answer. It was a question. A demand for a specific, actionable data set. Her mouth was insistent, her hands framing my face, holding me in the beam of her focus. It was the opposite of calming. It was a system stress-test.
And my body, traitorously, responded. The chaos of the last hour—the soft kiss, the spilled tea, the guilt, the cold bus ride—coalesced into a single, sharp point of contact. I kissed her back with a desperation that felt like failure and triumph all at once.
She pulled away first, her breathing slightly uneven. A flush high on her cheeks. An observable result.
“The tea,” she said, her thumb wiping at the corner of my mouth. “It’s herbal. Faint. But present.” She looked from her thumb to my eyes. “Contamination.”
Then she turned back to the glowing screen, the financial networks pulsating. “Now,” she said, her voice all business again, though a new, raw thread ran through it. “The third dataset. Explain your methodology before you contaminated the sample.”
I stood there, my heart hammering against my ribs, the taste of chamomile and her and shame and want swirling in my mouth. The tea had spilled. It had stained everything.
And I had never felt more clearly, devastatingly, mapped.
The taste of chamomile was a ghost on my tongue, faint beneath the immediate, clean sharpness of her. She had turned back to her screens, dismissing me, but the place where her thumb had wiped my mouth still burned. A data point, cleaned. A variable, isolated.
“You wiped him off,” I said, the words leaving me before thought could intervene.
Meilin didn’t turn. Her fingers tapped a rapid staccato on the console. “I corrected an observable artifact. My analysis requires a clean signal.”
The hum of the servers seemed to swell, filling the sterile air between us. It was the only sound for three long, buzzing seconds. Then I crossed them. The space between the door and her workstation felt infinite and then, suddenly, gone. My hand found her shoulder, turned her.
Her eyes flashed wide, a fracture in her composure. Surprise. Then calculation. She let me turn her, her body yielding without resistance, a test of a new parameter.
“What is your objective here?” she asked, her voice low. A researcher querying a sudden change in conditions.
“You tell me.” My voice was rough. “Run your diagnostic.”
I kissed her again. This wasn’t like the dorm. That had been a collision of curiosities. This was a targeted strike. I poured every conflicted, guilty, hungry ounce of the evening into it—the softness of Kenji’s lips, the shame of my retreat, the electric pull of this cold room. My tongue pushed into her mouth, claiming the space. She made a sound, a short, sharp intake of breath that wasn’t protest.
Her hands came up, but not to frame my face. They fisted in the front of my sweater, pulling me flush against the hard edge of the console. The shock of contact, of her body aligning with mine, was a bolt of pure current. I gasped into her mouth.
“You are introducing significant noise,” she murmured against my lips, but her hands were tugging my sweater up, her cool fingers finding the skin of my waist.
“Then filter it out.” I bit her lower lip, not hard, but with definite pressure. A controlled aggression. Her hips jerked against mine.
She did filter it. With action. Her kiss turned ruthless, all seeking pressure and intellectual hunger made physical. She tasted like black coffee and a faint, metallic hint of the lab’s air. One hand slid around to my lower back, pressing me into her, while the other stayed tangled in my sweater, pulling it higher. The chill of the room hit my exposed stomach. I shivered.
“You’re cold,” she stated, breaking the kiss. Her eyes were dark, pupil swallowing iris.
“You’re warm.”
It was true. Where our bodies met, a fierce heat radiated from her through our clothes. She looked at me, a final, rapid assessment. Then she decisively pushed my sweater up and over my head. It caught for a moment on my chin, blinding me, before she pulled it free and dropped it to the floor. The air was a shock on my bare skin. My bra was simple, plain cotton. Her gaze cataloged it, unimpressed.
“Logistics,” she said, all efficiency. She reached behind her without looking and slammed her hand down on a keyboard. The brilliant, colorful networks on the main screen died, plunging that side of the room into near-darkness. Only the glow of a single monitor remained, casting her face in stark, pale light and deep shadow. “Minimize external variables.”
In the new half-light, she looked different. Less a scientist, more an apparition. Her own thermal shirt followed my sweater to the floor. She wore no bra beneath. Her breasts were small, high, her nipples already taut in the chilled air. My breath hitched. The sight was more arresting than any fantasy my mind had cobbled together.
“You’re staring,” she said, her tone flat, but a faint tremor beneath the words betrayed her.
“You’re beautiful.” The words were inadequate, embarrassingly sentimental.
“Irrelevant.” She stepped into me again, skin to skin now. The heat was profound. Her hands slid up my back, into my hair, gripping. “Response is relevant. This,” she ground her hips against mine, the rough denim of her jeans a stark friction against my thin leggings, “is a measurable response.”
It was. A thick, aching pulse had gathered between my legs, heavy and insistent. My thoughts had dissolved into static. The library, the tea, Kenji’s hurt smile—they were weak signals, drowned out by this overwhelming broadcast of need.
“Prove it,” I challenged, my own hands skating down her sides to the waistband of her jeans.
Her answering smile was a razor slash in the gloom. She turned us, guiding me backwards until the cold metal edge of a secondary worktable bit into my lower back. With quick, precise motions, she unfastened her jeans, pushed them and her underwear down her hips just enough. The glimpse of neat, dark hair made my mouth water.
“Your methodology is passive,” she said, guiding my hand down. “Activate the observation.”
My fingers dipped into her. She was soaked, slick, impossibly hot. A soft, choked sound escaped her, the most human sound I’d ever heard her make. It went straight to my core, coiling my own need tighter. I pushed a finger inside her. She was tight, clenching around me.
“Is that a measurable enough response for your dataset?” I breathed, watching her face fracture.
Her head fell back, her throat working. “It’s a start.” Her voice was strained. “Now move your fucking hand.”
I did. I set a rhythm, my thumb finding her clit, circling the hard little nub. Her hips began to move against my hand, a sharp, desperate stuttering. Her hands clawed at my shoulders, her forehead dropping against mine. Her breath came in short, hot puffs against my cheek.
“You’re thinking of him right now, aren’t you?” The words were a guttural whisper in my ear.
The accusation was a slap. My rhythm faltered. “No.”
“Liar.” She gripped my wrist, forcing my fingers deeper, harder. “I can see the contamination in your eyes. You’re comparing. Cataloging.” She bit my earlobe, sharp. “Do it. Compare. Which variable produces the stronger signal?”
It was vile. It was true. The ghost of Kenji’s soft, yielding mouth flickered behind my eyes, a tender shadow against the raw, demanding reality of Meilin on my hand. The comparison was inevitable, and it fueled something dark and hungry in me.
“You,” I gasped, adding a second finger, scissoring them inside her. “It’s you. Always you.”
It was what she wanted. What I needed to say. Her control shattered. A ragged moan tore from her throat, and her body bowed, convulsing around my fingers as her climax ripped through her. She shook with it, silent except for the harsh pull of air into her lungs.
She slumped against me, her sweat-slick skin cooling quickly. For a long moment, the only sound was our breathing and the eternal server hum. Then she pushed back, her movements regaining their swift, efficient grace. She pulled her clothes back into place, not looking at me.
“Your turn,” she stated, as if scheduling the next phase of an experiment. She nudged my leggings and underwear down my hips with two brisk fingers. The cold air on my exposed flesh made me gasp. Before I could process it, she dropped to her knees on the hard floor.
Her mouth was on me, hot and demanding. There was no gentle exploration. Her tongue licked a broad, flat stroke through my slit, then zeroed in on my clit with pinpoint accuracy. I cried out, my hands flying to the table edge for support. She held my hips steady, her grip firm.
“You taste like confusion,” she said, looking up at me, her chin glistening. “And like me.” Then her mouth was on me again, her tongue fucking into me with a relentless, focused rhythm.
It was too much. The cool air, the hard table, the clinical gaze now fixed between my legs, the brutal expertise of her tongue. The image of Kenji’s kind, wounded face surfaced once more, and it was the final trigger. My orgasm detonated, a silent, crashing wave that turned my vision white at the edges. I shuddered, my legs buckling, held upright only by her iron grip on my hips.
When it subsided, she rose. She snagged a box of lab wipes from a shelf, tore a few out, and handed them to me without comment. She used another on herself, wiping her mouth and chin with mechanical detachment. She turned and powered the main screen back on. The financial networks bloomed again, a silent, indifferent galaxy.
“The spill has been contained,” she said, her back to me, her voice perfectly even. “The contamination is cleansed. For now.”
I dressed with numb fingers. My body felt used, clarified, hollowed out. The room smelled of sex and sterile wipes.
“Tuesday,” she said, still not turning. “You have your concurrent walking arrangement. A continued test of the other variable. Gather that data.”
It wasn’t a suggestion. It was the next step in her protocol. I had become a lab animal in a comparative study of my own making. I walked out into the concrete corridor, the humming silence of the lab at my back. My body thrummed with the aftershocks of her. My mind was a clean, blank slate.
All that remained was the next test. Tuesday. A walk in the cold daylight. A boy with a soft smile and a heart I was contractually obligated to break.