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...
It would be difficult to establish myself 
as her equal in a short period of time.
Sería difícil establecerme como su 
igual en un periodo de tiempo tan corto.
Sería difícil establecerme como su 
igual en un periodo de tiempo tan corto.
Seria difícil me estabelecer como igual 
em um pequeno período de tempo.