A new semester begins as the spring breeze carries cherry blossoms through the school. On this day of excitement and nerves, the classroom is buzzing with energy. Groups have already formed inside the room, and the air is filled with the sounds of their cheerful conversations. As for Segawa, he nearly overlept on the first day but managed to reach the classroom just before the bell. He takes his seat, hangs his bag on the side of the desk, and waits for the teacher to arrive while letting out a yawn. A boy sitting in the seat in front of him starts to turn around to talk to him, but the bell rings, and the boy immediately faces forward again. Within seconds, the room is enveloped in silence. The front door opens and the new homeroom teacher walks in, making the students stir with anticipation. The new teacher stands at the podium and begins his introduction.

"Nice to meet you all. I'm Akihito Sawada, and I'll be your homeroom teacher for the year. Feel free to call me Mr. Akihito!" As Akihito smiles, the classroom erupts in applause. Once the clapping dies down, he continues. "Also, we have a transfer student joining this class today! I want everyone to make them feel welcome. Come on in." The door slides open with a rattle. When "he" walks in, Segawa feels a shock like he's been struck in the chest.