Tsubaki has a son who frequently arrives late and recently started showing interest in men. Determined to make her son into a real man, Tsubaki's mother decided to teach him about women and how to handle them through sex education. However, this sex education involves using her own body for intense demonstrations! Starting with how to kiss, the sex education escalates further. Thanks to this education, her son has become quite robust, and Tsubaki's mother…
