Yu He accidentally slipped into the book and became an unrelated adopted sister who grew up with Feng Jin. Feng Jin's fate was full of twists and turns, and he suffered a lot from human kindness when he was in trouble. According to the direction of the original story, there will be many gaps between the two, leading to a bad ending. In order to change his destiny, Yu He chose to take the initiative to show kindness and treat Feng Jin with sincerity when he was in a difficult situation. But past experiences made Feng Jin wary. He misunderstood Yu He's thoughts, misinterpreted all her concerns, and repeatedly responded with money. A relationship full of misunderstandings begins. Can the relationship between the two break the established trajectory of the story?