The story of a trump card killer transforming into a Flower Protector. Li Haotian was betrayed by the woman he liked. After he woke up from the injury, he took over the "Beauty Service Center" for no reason. After that, his duty was to help the beauties solve all their problems together with the beautiful assistant. If he defaulted on the contract, he would have to pay a lifespan of 20 years. Beauties with different identities and personalities became the target of his help.