The students of Daisuke Kira’s class 4-B were both atypical and altogether normal. Of course, Kira-sensei himself was atypical, but he didn’t mind passing his oddities to his students. Among his students were Midori Itoue, Aka Suzuki, and Miruchi Kagazawa. These three held a special spot in Kira-sensei’s heart because of their unstable abilities at finding happiness.

Kira-sensei himself was a bit unhappy because he had feeling for one of his students – an American exchange student named Kristi – who wouldn’t even glance at him when she was handing in her homework. Another oddball in his class was a young man named Jonathan who, of late, seemed detached and distant. Once, Jonathan would talk non-stop about videogames and such, but now… Nothing.

The following entries are a record of the events in Kira-sensei’s classroom, detailing the lives and loves of his beloved Class 4-B.