"I'd date this waiter even if you were the last woman on earth and the world was ending," declared Niunaico. But as Nuowan spoke these words, the apocalypse struck. When he came to, he found himself lying next to Senyu, a male waiter. Despite Senyu's survival skills, he kept catching Nuowan off guard with unexpected kisses. Is he a post-apocalyptic hero or a demon of smooches? Can the entitled heir and talented waiter coexist peacefully in this new world?