Takeshi and Mizuki have been close friends since their ● school days. They moved to Tokyo together to attend the same university. Takeshi isn't popular with women, but Mizuki is very popular and sometimes brings girls back home. One day, Takeshi became obsessed with an AV actress named 'Tennen Bitsuki' and recommended her to Mizuki. The next morning, Mizuki had turned into the AV actress Tennen Bitsuki.
