Valen, the hero of the kingdom who loathes demons. While trying to save a woman who was about to be attacked by a demon beast on the battlefield, he was struck from behind and lost consciousness. And when he opened his eyes... he was in the middle of a forced wedding ceremony with the woman he saved, in the Demon Realm! "I am Arhen. And you?" "Do you think I have a name to tell a filthy demon?" The woman Valen saved was Arhen, a high-ranking demon presumed to be a succubus, and the demons, exhausted by long wars, proposed a marriage alliance to him. "As you can see... I get wet easily." Moreover, the deal ends when Arhen becomes pregnant. Can the newlywed life of Valen, a human hero with demonophobia, and Arhen, the Demon King who wants to maintain peace through pregnancy, truly be peaceful?
