Haruka is a beautiful married woman. Recently, her husband has been coming home late and not eating at home. He has also not had sex with her for a long time. She became even more certain when she smelled women's perfume on her husband's shirt and a woman's voice called, wanting her to divorce him. She told herself everything was fine, her husband would know how to return to their home. But she was really lonely, her sexual desires that had not been satisfied for a long time were accumulating more and more, forcing her to masturbate to relieve some of the emptiness in her heart. She did not know that all her actions and expressions were seen by the student across the house. He is a hard-working, diligent student. Even though he failed the judicial school entrance exam three times, he still persisted in registering for the exam again. But ever since he met Haruka, he fell in love with this beautiful woman. He always watches and knows all the secrets and loneliness that Haruka is experiencing. One time, he went to steal Haruka's underwear and saw Haruka masturbating. Unable to take his eyes off her beautiful body, he was discovered by her. He abandoned everything, even if he was sent to prison or she wanted to kill him, he didn't care! He just wanted to make love to her once, to satisfy her, to mend her broken heart. Increasingly disappointed in her husband, Haruka gradually accepted the student from the opposite house, continuing their secret relationship...