Story is about a widowed mom and her son's promiscuous classmate
[Character intro]
Mamiko Takada (36) - A brave widowed mother. She's plain and unconcerned about fashion but she's beautiful and popular. She worries that her son, Hiroto, is being bullied at school. She hasn't done anything sexual in over 10 years. She hides her frustrations.
Hiroto - Mamiko's son He loves Mamiko. He's being bullied by his childhood friend, Takashi but can't tell Mamiko.
Takashi - Hiroto's childhood friend. He has suddenly gotten bigger after moving up a grade. He's jealous of Hiroto's beautiful mother and has begun to bully him. He became romantically involved with Mamiko in the previous work.