Jun is doing her best to meet the expectations of the students. She's very popular with the students, but she's been possessed by a loose soul. And so, Keima begins his conquest of Jun. However, she's preoccupied with becoming the ideal teacher, so she only sees Keima as a student. In order to break free of the teacher-student mold, Keima decides to approach Nikaido, who was Jun's senior in school...