Morisawa Kana (Iioka Kanako) plays the woman of his dreams. She's divorced and single, and I fell in love with her first, but then my pushy brother takes her away. Watch as her passionate affair with her unfolds before his eyes. Her voice trembles as he thrusts roughly at her, and she shows a lustful, feminine expression he's never shown him before. He feels the humiliation of peeping at her as she becomes someone else's, but even more so, he feels the immoral sexual excitement. He sees her climax with her brother's semen poured deep into her uterus. A cruel and beautiful despair called BSS (I Loved Her First).