After company president Keiichirou falls ill from overwork, the family physician begins a sinister plot to seize the family's wealth. By manipulating Ayuki under the guise of "medical treatment" to aid her husband's recovery, the doctor uses mind control and sexual coercion to break her spirit. When their daughter, Kirara, discovers the doctor's immoral acts, she becomes the next target of his predatory conspiracy.
Ayahi, desperate to help her ailing husband, is manipulated by a sinister doctor who convinces her that sexual "treatments" are necessary for her husband's recovery. This corruption soon extends to her daughter, Kirara, who is blackmailed and forced into the same depraved regimen. Through a combination of drugs and psychological manipulation, the doctor and his assistant, Tokuko, seize control of the family's wealth and dignity, eventually turning both women into subservient puppets used to further Tokuko's corporate ambitions.