Koibito wa Oni no Hime

I Hayato once met an Oni princess when I was young and I made a promise to marry her when I became eighteen But after that day I was predisposed to experiencing ecchi disasters whenever I touch women With the cause unknown I intended to live out my life in high school without ever finding a girlfriend But on that faithful day Sakura the Oni princess grown up came back as promised This is the tale of an Oni Princess x High School Boy and the mystery of the ecchi Curse Charm that circles them