Johnny

Johnny is a Human ghost haunting Saint Ishiyama Academy. He appears in the anime only.

Takayuki Furuichi
Johnny possessed Furuichi as means to have been able to contact Yuko, it is shown in flashbacks that he was behind Furuichi all along when he was talking to Yūko. He seems to be on good terms with him and states that "it was fun possessing" him before crossing over.

Yūko
It is revealed than when both ghosts were alive Yūko had a crush on him, but did not have the courage to confess. Soon after she died she haunted St. Ishiyama High's nurse office hoping someday she would meet Johnny again. After she gains confidence from Furuichi's love advice, she confesses her love to him and both crossover together.