After marriage, Shiho began her new life with her husband and father-in-law. Unlike the happy married life she had dreamed of, reality proved harsh. Her husband came home late every day due to work, leaving their marital relationship unsatisfying. During the day, she suffered emotional and physical strain from relentless bullying and sexual harassment by her father-in-law. Tormented by continuous, insidious sexual advances and burdened by sexual frustration from their sexless marriage, Shiho eventually chose to sacrifice herself. As a result, her body was consumed by forbidden daytime training, marking the beginning of a new life.