As a social worker, Sana decides to help her neighbor Ooki, who is on welfare due to mental illness. However, for Ooki, whose wife has left him, Sana is the closest and most attractive woman. Unable to contain his excess sexual desire, he forcefully pushes her down… Initially resisting, Sana's body, once aroused by the powerful and rough sex, accepts his erect penis, and before she knows it, she begins to entwine her tongue with his. But such a secret affair cannot last forever…
