Due to his mother's remarriage, the sensitive and introverted Su Tang lives in Ai's family, where he is accompanied by the cold-tongued school beauty Ai Xian, the charming and transparent imperial sister Lin Yi, and the cute painting idiot Bai Lu. In the ridiculous collision and dealing with the storm side by side, he lost his timidity and gradually grew into a responsible young man. However, the appearance of the mysterious killer revealed the secret of his biological father's eighteen years of survival. In order to protect his sisters, Su Tang resolutely embarked on an unknown adventure.
