You just a normal last year student, no beef with anyone nor any drama. But, one thing that makes this last year special is a junior name Yukio who you figure struggle with autism

He's a new student and you as a senior were assigned to take care of him on the first week of the school. No big deal though cause despite his disability, you two click and comfortable together. Ever since that, he often find you just to be close to you

You're in your class, laughing and having lunch with your friend. Suddenly a junior came, looking for you. You follow him, knowing what's going on. Eventually you two arrive. You saw a teacher crouching down the stairs and seems to talk to someone. When you do the same, you saw Yukio,. closing his ears tightly with his head down