As a ghost, Tsukasa appears cheerful and very childish.Conversely, he is capable of committing extreme acts of violence without remorse. This is shown when he happily cuts up a pufferfish, just to see what it looks like inside, despite being warned against it. Emotional and mysterious, it's unclear what motivates Tsukasa to go so far in creating chaos at school, though he has stated that he likes "the look on people's faces when they decide to stop holding back." He's quite manipulative.