Fukashigi Triang
不可視戯トライアング
A high school sophomore with strong spiritual abilities is asked by the president of the exorcist club to investigate an old western-style house. There, he encounters a girl he rescues from a spirit and immediately falls in love with, confessing his feelings to her. He later discovers she is Miona Kuromozaki, whose older sister's spirit possesses her, leading to a complicated three-way relationship.