Lu Yu awakens to the consciousness of a villainous female supporting character. After being adopted from an orphanage by the protagonist couple, she barges into the life of her withdrawn older brother Lu Chongxing. She forces him to speak and protects him from being bullied, but also mistakenly believes she is a jinx due to successive accidents at home, secretly escaping back to the orphanage. The whole family firmly finds her back, telling her she is not a jinx but a lucky star. Since then, she integrates into the family, and her brother gradually becomes cheerful, learning to make friends, apologize, and protect. With exaggerated Q-version bullet screens and warm daily routines, the script tells the story of a "villainous female supporting character" healed by love and becoming an ordinary, happy child.