The heroine fell in love with her stepsister, but the stepsister didn't like anyone. The heroine couldn't get her step-sister. The hero's offensive was too fierce. The heroine compromised and was not happy after marriage. The hero knew the heroine's sexual orientation and abandoned the heroine. However, there was no divorce. They just lived in the same house. The stepsister later got a boyfriend and found that she couldn't accept the man being close to her. Only then did she realize that she really liked a girl, or the heroine.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.