Ai Sayama in an exceptionally voluptuous and pretty married woman that is getting continuously neglected by the husband.
She is feeling very frustrated and it has come to her ears that the neighbor Ogawa just got recently divorced. She then gets curious about him and while looking at his apartment they have an awkward naked encounter.
She storms back to her apartment and Ai Sayama begins to masturbate furiously thinking about Ogawa, something that eventually also gets noticed by him, starting off their relationship in such unlikely and awkward fashion.
