Episode Title:
The Hell Professor vs. Hell Girl.
Episode Description:
An old man named Mizuragi Shōgo types Tsugumi's name into the Hell Correspondence. Each sensing the request, Yuzuki, Ai, and Tsugumi go to his mansion. Shogo explains that he gained interest in Hell after his mother used Ai's services to send his father to Hell. After years of research, he yearned to meet Ai and so had an artificial grudge against Tsugumi planted in his mind through hypnosis in order to feel enough hatred to meet her...
