Boku no Itoshii Youkai Girlfriend

Set in the beautiful city of Kyoto, a strange relationship is sparked between lonely university game geek Tadashi, who wishes for nothing more than to find a girlfriend, and Izzy, a Yokai girl who can only sustain herself by engaging in physical relationships with men. While Izzy’s true intention is to exact revenge on a human family over an incident 500 years ago, Hachi struggles to find a peaceful solution to the problem. (Source: Japanese = natalie.mu || Translation = MyDramaList)