Takahiro is a dull student who lives with his father, who is his landlord. Takahiro's life is not going well, but one day, an incredibly sexy beauty, Rena, moves in next door. She seems to be a married woman, but for some reason she is very interested in Takahiro. What's more, Rena seduces him without a bra, and Takahiro can't contain his excitement...