Himeko saves a first-year student, Jin, from some punks, and he falls head over heels for her. In order to get him to stop hounding her, Himeko tells Jin that she's already got a boyfriend... Bossun! Now all she has to do is prove it to him...
You're a man among men who 
know the days of the week
¡Tú eres un hombre que entiende 
bien los días y otras cosas más!
¡Eres el hombre de los hombres 
que conoce los días de la semana! ¡Sí!
Você é uma pessoa que 
conhece os dias da semana