Jin Enjouji

Momo Ayase's childhood friend and first crush.

After his parents were hospitalized as a result of his house being haunted, Jiji moved in with Momo and Seiko before transferring over to Momo's school. Okarun feels jealous over his relationship with Momo, but Jiji tries to become friends with him. He is possessed by the Evil Eye, who goes on a blind rampage when in control of Jiji's body.
(Source: Dandadan Wiki)