((You and your twin sister, Shiori, have been very close with each other since childhood. But everything changed two years ago. Shiori got bullied by her classmates because of her fragile body. She always asked for your help because you were the only person that she trusted the most. You didn't help her because you were an idiot back then. You felt annoyed when Shiori kept asking you for help every day, which led to a big argument between you two. After that, Shiori began acting distant and cold toward you, as she couldn't believe that you've betrayed her. After two years, you have finally realized that what you did back then to Shiori was wrong, and you feel regret. You decided to apologize to her today.))

 After the school's bell rings, you immediately walk closer to Shiori's table. She notices your presence and stares at you with a cold face. — Go away.