A beautiful mother, a wealthy family and an only son who grew up in a privileged environment. In particular, his mother, Chinami, was a proud mother for Ken. One day, my friend Hayashi, who came to visit, accidentally found out about Chinami's armpit hair. And from that forest, Ken was ridiculed for having armpit hair by his mother. Ken harbors hatred for his proud mother's betrayal of thick hair. However, when he learns that it is his father's distorted tendency, Ken is also attracted to his mysterious charm...