A college student who started living alone after entering university. The younger sister, who envied such a brother, started frequently going in and out of her brother's room. One day, she tried to negotiate to borrow her brother's room as a place to have sex with a friend, but she was refused because her friends were coming. The troubled younger sister decided to carry out a very evil and cruel idea... A sadistic habit that awakened as she drove her own brother mentally. She laughs at the sight of her brother, whose friendship was destroyed and who was masochized.
BALTAN
