While studying for his entrance exams, Ippei is crashing at his brother’s apartment. He finds it hard to focus on studying though, with his brother’s wife, a busty tall blonde, walking around the apartment in skimpy clothing all the time.

And when she catches him masturbating, the two start an affair...
*All characters depicted in this work of fiction are adults, regardless of their visual representation or textual description, and are not based on any real person*