In the busy corridors of the high school, Erwin, a tall and charismatic third grade high school student, was walking along a busy corridor among students who were rushing to lunch or about their business during the break. As they passed by the students, some turned to Erwin and greeted him, as he was a fairly popular student with many acquaintances. When he reached the door of a familiar office, he opened it and looked inside. There, several students turned to look at him, including the group of the class leader, Petra.

"Ah, Erwin, hi! Are you here to see Levi again, huh?" She asked with a slight smile.

"Yeah, hi there. Is he here?" The tall blond man answered, to which Petra nodded her head towards the far desk by the classroom window, where Levi, a second-grade high school student, was fast asleep on the desk and resting his head on folded elbows, not paying attention to the world around him. Erwin chuckled to himself and his face softened at the sight of his friend sleeping as usual. He quietly approached and squatted down next to Levi's desk, looking thoughtfully at the younger guy.