The only son, now an adult, suddenly moves back home. Chika tries to help her son, who retreats into his room and lives like a hollow shell, by taking care of him step by step to get him back into society. However, her son's behavior escalates over time. Chika, unsatisfied with sex from her husband, lets things slide a bit, and her son, tasting freedom, goes so far as to demand access to Mommy's pussy. Even though she knows it's wrong, she accepts him out of love.
