Third year middle school student Anna has begun living with fourth year college student Ema, and is swung about by the tactless Ema. Drawn in by the romantic designs of Ema, the once perfectly ordinary Anna ...

In the month since she transferred to a new school, Misao hasn't made any friends. Instead, she's been teased and bullied by some of the more aggressive girls in class. This all changes on the day Sae return...

Set nine years after the beginning of the first series, the main viewpoint character is Oda Mari, who is now a 25-year-old teacher at Mizushou High in Tokyo.