When Jiang Yeyu's mother remarried, he gained a step-sibling named Qiu Xi. Over time, Jiang Yeyu realized that he was developing feelings for his younger brother, a realization that surprised him. After spending some time apart, they reconnect unexpectedly and Jiang Yeyu's long-suppressed affection is reignited. Now he must consider whether to keep their brotherly bond intact or take the risk of confessing his romantic desires.