Ami, a female college student who is aiming to become a financial planner, asks Sugiura, a long-time acquaintance of her father and is very keen on asset management, to become a private tutor. Sugiura has a lewd interest in Ami, who has grown up and has become an adult body. Sugiura, who is unknown to Ami and the others, has failed in business and is incurred in large amounts of debt, becomes jealous of her former companions who are building a happy family, and tries to clear her grudge by sacrificing her daughter Ami...
