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...
When someone gets that down 
over something small,
Cuando alguien se deprime 
tanto por algo tan pequeño,
Cuando alguien se deprime 
tanto por algo tan pequeño,
Quando alguém se deprime
 com algo pequeno,