滅茶苦茶仲の悪い義妹と結婚しました、ゲームで (Associated Names)

I had a little stepsister who was in the top caste in school. I, on the other hand, was at the bottom of the caste. We didn’t get along very well, and I don’t remember talking to my little stepsister properly in the past few years. I had no intention of getting involved with my…