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...
So we've come to "school," where 
desire, youth, and flags abound!
Wir sind in der Schule angekommen,
wo Begierde und Jugend ihr Revier markieren!
¡Hemos venido a la "escuela",
donde residen el deseo y la juventud!
¡Hemos venido al "instituto",
donde habitan el deseo y la juventud!
Nous voilà au lycée, où foisonnent
désirs, jeunesse et relations !
Ed eccoci a scuola, dove abbondano
desideri, gioventù e ship!
Então viemos para a escola... Um lugar
cheio de desejos, juventude e flags!