The young man, although he broke up with his lover, after seeing that he was too delicious, returned to his desire to have sex with his ex-lover, even though he knew that he was already married. He secretly followed her to the apartment, because he knew that the door password had not been changed yet, so he could easily break in.
She was sneaking around when she saw her masturbating, it seemed that her husband couldn't satisfy her,... and then....