Minako lives with her son Hitoshi. He used to be a boy who couldn't handle it, but when he got injured during club activities and couldn't play basketball, which he loved, he started to bring his bad classmates home. Minako asks her classmates, "Don't get involved with your son anymore," but this word ignites the classmates' anger. Even if you look at it, Minako is mercilessly circled. The nightmare doesn't end there ...