早くに出産し、まだまだ全然アリなお母さんの成熟した裸に触れ発情した童貞の僕は興奮を抑えられずイケないコトとは知りつつも一線を越えてしまった。

A son who has had a faint love for his mother since he was a child. On a hot spring trip with his mother and son, she witnessed her mother's mature body, and his son exploded the restrained lust. Her mother also finds out that her son sees herself as a woman and accepts her son's body, knowing that she is not cool. The fate of the two who fell into the incest of the mud ...