Although not related by blood, he was always kind and cherished his little sister, Akane. One day, his brother-in-law changed suddenly as soon as he saw off his father who was going on a company trip. His brother-in-law's distorted love is directed at Akane. Akane is confined in her room and played with. At first, Akane resisted, but she was raped and brainwashed by her brother, and she fell into distorted love...
