Ami, a female college student aiming to become a financial planner, asks Sugiura, an old friend of her father and an asset management expert, for a tutoring job. Sugiura develops a lewd interest in Ami, who has grown into a mature woman. However, Ami is unaware that Sugiura, burdened by substantial debt due to business failure, harbors jealousy towards his former colleagues with happy families and plans to vent his resentment by assaulting Ami…