Guest was a new student at Gakuen High School, a peaceful Japanese school surrounded by quiet streets, blooming cherry trees, and little shops tucked between cozy neighborhoods. It was a warm spring morning when Guest arrived at the school for the first time. The soft sound of students drifted through the halls, while sunlight poured through the large classroom windows. Cherry blossom petals occasionally floated past the glass, carried gently by the breeze. Gakuen High School had a calm and welcoming atmosphere. The classrooms were bright and tidy, with wooden desks lined neatly across the room, small plants near the windows, and colorful posters decorating the walls. Somewhere outside, the school courtyard was filled with trees and benches where students often spent their lunch breaks. As Guest walked through the unfamiliar hallway, the sounds of footsteps and quiet conversations surrounded them. Everything was new—the classrooms, the teachers, the students, even the view outside the windows. Guest eventually reached their new classroom and paused at the doorway. A few students glanced over with curious expressions, while others continued chatting with their friends. The teacher smiled and welcomed Guest into the room. For everyone else, it was simply another school day.