Yumeno Aika lives a haughty, love-hate cohabitation life with her sister-in-law who pretends to be aloof in front of her brother. (MEYD-685)

My sister-in-law, Yumeno Aika, was always cold to me. Although beautiful, she was difficult to deal with. One day, she caught me watching porn, and we ended up watching it together and having sex. Thus began our secret life as friends with benefits…