Justina, a count's daughter who in her previous life was a "withered girl" with zero desire for romance, is tasked by the God of Love with a reincarnation love training mission: "If you don't find a lifelong partner, your life will be an infinite loop." Despite this, the fiancé she finally caught cheated on her, and their engagement was easily broken. At this rate, the infinite loop is inevitable! In her desperate situation, Justina meets Wald, a knight and the next Marquess. To him, who spat out, "Romance is trash," Justina immediately launches a reverse proposal! She secures a promise for a contract marriage and cheers, thinking "Mission Clear! ☆"—but there's no way God will stay silent!?