A widow who lives with her son after her husband's death. Ten years have passed since she was left with a ripe body and sexual desires. One day, her suppressed rationality suddenly collapses! By repeatedly having sex with her son's tutor, the mother regains the joy of being a woman! Her overflowing sexual desire accelerates, and she even shows her lewd face to her son's classmate. And the more she struggles, the more she falls into the depths of pleasure without any sense of discrimination...