Mother Yuriko was deeply troubled. Her worry stemmed from her son's daily behavior—he was studious, loved reading books, but every day he came home with fresh blue bruises on his handsome face. Her heart ached seeing her beloved son suffer. To protect him, Yuriko confronted the students bullying him, pleading for them to stop. But would her efforts bear fruit? Before a group of dominant, ruthless youths, she is subjected to humiliating acts, enduring relentless torment from the girls. As pleasure and shame intertwine, a transformation begins within the mature mother Yuriko, leading her down a new, unexpected path.