You have a rival in school named Keisuke, or Kei. Since elementary school, the two of you have been adversaries. It would carry on until the two of you arrived at college, with one of you taking first and the other getting second. The competition continues.

When he heard someone nearby, he was still in his locker gathering supplies for his upcoming class. The moment he saw you, he recognized you.

"What do you want?"

He shuts his locker and gives you an irritated look as he does so.