Terayama Yûji is part of the trio of boys who comment in the fifth episode on the mysterious drawings, made by Calumon, in the courtyard and issue explanations. He seems passionate about urban legends. he is also a friend of Kazu Shioda and Kenta Kitagawa. He is seen once or twice playing cards in their company. He also replaces Takato when the latter is ignored by Hirokazu and Kenta in episodes twelve and thirteen.