Yumi Anno, a widow running an oden shop with her son, desperately clings to her job to support her family. To keep her position, she's forced to comply with the manager's sexual harassment—enduring cock thrust into her mouth and swallowing his cum. Under the manager's orders, she receives explicit lessons on a woman's body from her son's friend, experiencing handjob and footjob training that turns her into an aggressive seductress. Subjected to relentless power harassment and pleasure torture, she screams through each intense sex session. Her son's deep affection for his mother manifests in an incestuous relationship, climaxing in a total of 15 orgasms. Working at this blissful oden shop brings Yumi a new kind of happiness.