The Temptation of Kimono (Ｍ家の新妻　変態洗礼) 15 years old

Mikage will get married to Youiti next year, she agrees to live with Youiti's parents. One day, Youiti's father disrobed Mikage's Kimono and raped her. To her astonishment, her fiancé Youiti whom Mikage considers true love has an affair with his young stepmother. Shocked and devastated, what will Mikage do?