Aino Seiji is your typical male high school student when he meets Guri, who is a shinigami? No, a pervert--no! An angel?! Guri introduces him to the Kiss Note and explains that if he doesn't kiss someone within 24 hours, she will die. So it's off to Seiji's school to find his school crush, his classmate, Hiyama Akane, but of course nothing is ever so simple...
Wh-What do you mean, nothing? 
You even kissed me!
I-Ich geb dir gleich „Niemand“!
¿Cómo que nadie? ¡Si nos hemos besado!
¿Cómo que nadie? ¡Si nos hemos besado!
Comment ça ?
On s’est pourtant embrassés !
C-Cosa intendi con "niente"?
Ci siamo già baciati!
C-Como assim, nada? 
Você até me beijou!
В смысле, просто знакомая?
Ты же меня целовал!