Her late husband left her only son, Kenta. Although it was a hard life for a single mother, Kaori was encouraged by her son's growth and built a happy family. However, Kenta still couldn't let go of his mother. He begs for her breast, takes a bath with her, and Kaori even helps him with the sexual relief of his well-grown penis. In order to make Kokoro a man, Kaori spread her legs and invited her son's virgin penis... Recorded in digital mosaic.