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...
I just happened to have an extra ticket, 
so I invited Bossun just normally, is all.
De casualidad tenía una entrada de más 
e invité a Bossun con total normalidad.
Eu tinha um ingresso sobrando e acabei
 convidando o Bossun normalmente, é isso.