Yu Yingying and Jiang He are archenemies who bicker and compete every time they meet. No one expected that an unexpected bout of amnesia would completely disrupt everything. Acting on a sudden impulse, Jiang He simply rolls with it, keeping the amnesiac Yu Yingying by his side in the identity of her boyfriend. Under the same roof, ambiguous tension continuously ferments, while tenderness and heart-flutter quietly sprout. Meanwhile, Miao Qi, who has a crush on Jiang He, refuses to let it go, spreading rumors everywhere, scheming in secret, and constantly making trouble. As her memories gradually return, Yu Yingying finally recalls that they were clearly at odds with each other before. With her sweet dream on the verge of shattering, the usually casual Jiang He has no choice but to let go of his pride, embarking on a frantic yet sincerity-filled journey to win back his wife.