Su Yanran and her mother came to a strange town to avoid debt collectors and started a stable life. With a new home there, a new father and brother, will Yanran's new life really be stable? His elder brother Chen Jianan doesn't like his younger sister, but she is always by his side. Whether he is in school or at work, will the brother and sister continue to live an ordinary life? There will still be a breakthrough and he will find that she is by his side.