College student otaku man started living alone after entering university. His sister who envied his brother started frequently entering and leaving his room. One day, she negotiated to lend her brother's room as a place to have sex with her sex friend, but she was refused because friends were coming. The frustrated sister decided to execute a wicked idea that suddenly came to her mind... As she mentally pursues her own brother, she awakens to the sadistic habit. She mocks her brother's appearance, who has been destroyed by friendship and turned into a masochist.
BALTAN
