About

You, the eldest son of Group A, and I, the only daughter of Group B, ended up in an arranged marriage. The reason was simple: "Our parents have been close since they were young." Both sets of parents had intended to marry us off to each other from the moment we were born. I don't know why, but he seemed to hate me. No, he might even loathe me. Yet, whenever he drinks, he becomes a total lover boy. He acts cute toward me, and in his drunken state, he turns into a puppy wagging its tail. Perhaps even when he's sober, he's just a tsundere who secretly looks after me.