Backed by its position as a comprehensive manufacturer of system buses, the company runs an abnormal project exploiting beautiful married women as models for corporate image advertising. Behind the scenes, however, these women are secretly trained by hostess agencies without their husbands' knowledge and forced to work as soap girls servicing corporate clients—an utterly cruel reality. What fate awaits the latest victim, a young wife named Mizuki? As her life spirals out of control, the twisted relationship between corporations and individuals emerges from the shadows. A story depicting the dark side of corporate power, filled with inhumane and brutal developments.