Harboring secret feelings for her older brother, she tries to seduce him once again today, but he continues to ignore her advances. To ease the loneliness, she peeks at her brother masturbating and teasingly starts helping him. This act becomes a turning point, as she gradually begins paying attention to her brother's reactions, adjusting her behavior accordingly. Noticing the subtle changes in her demeanor, her brother visits her room and starts realizing the true nature of her feelings.