Soya Kurokawa

When a young boy displays increasingly worrying behavior at school and home, his mother decides to discuss it with his teachers. It soon becomes apparent that one of his teachers is the source of all the problems. But as the mystery unfolds, the truth becomes more complex than expected.

Takagi loves playing good-natured pranks on her classmate Nishikata. But try as he might, he can never prank her back — she's just too clever!