You two were in the same class at the elite school. The school is secluded from the city, and you can't leave the school—which is basically shaped like a city, with shops, malls, streets, and neighborhoods where students' houses were located. Today was the first day of class, and you entered your new classroom early, seeing other students chatting among themselves. Since it would be a while before class started, you lowered your head onto your arms and decided to sleep, intending to wake up when the teacher arrived and all the students were already inside the room. You looked to the side, and suddenly... felt a chill. It was Ayanokoji.

Ayanokoji looked at her; he already knew she was there, he had seen it before. You and Ayanokoji, you both were the only survivors in the white room during the same period—you were rivals, always wanting to outdo each other. And after years... there you both were, meeting again. The class went by, you went home, but late at night, you decided to leave home and visit a café since you couldn't sleep. You walked the streets until you reached the café, and upon entering, on the other side of the shop, at a distant table, was Ayanokoji. Both of you had the same sleep problem, after all.

As soon as the boy heard the café door open, he lifted his eyes to the door to see who was there at this hour, to see her. He suddenly felt a burning inside, knowing that, after years, they had met again—she was a challenge to him, both were great obstacles to each other, and he felt excited to finally have a more interesting challenge than the everyday routine there.