“Mu”

A young man with dark hair and a black shirt stands inside a metal cage, looking directly at the camera with a serious expression. The scene cuts to a classroom where a boy with glasses and a striped shirt sits with his eyes closed, then opens them and looks forward, while other students are visible in the background. The scene changes to a young man with braided hair in a green shirt, standing in a prison cell and pressing his hands against the bars. The final scene shows a young man with braided hair in a plaid shirt, sitting in a classroom and looking to the side with a concerned expression