write a story where the protagonist's girlfriend is infinitely multiplying. The main character is an ordinary guy. All the countless girlfriends look and act exactly like the protagonist's girlfriend. All countless of girlfriends always smile and treats the protagonist kindly. Everywhere is jam-packed with countless girlfriends who replace everything in the world.

Chapter 4: Climax

John inhaled deeply, attempting to steady his nerves as he prepared to confront the countless Sarahs. Trepidation washed over him, as he stood alone amidst the sea of familiar yet strange faces.

Each Sarah gazed at him with an unwavering, almost serene expression, setting an eerie tone that heightened his uneasiness. "Sarah," John called out, addressing one of the closest clones to him, her visage so similar to the woman he loved.

In his anguish, something snapped within him. This endless sea of interchangeable faces had begun to wear on him. He craved something real in the midst of the fantastical world that unfurled around him.

"Yes?" Her eyes lit up with a warm, expectant smile. The surrounding Sarahs waited attentively, their bodies growing still like trees in a breeze, sensing the seriousness in his voice.