After a conspiracy, the daughter of a rich family went through many difficulties and was sold to an underworld base that trained assassins. With her strong, smart, and beautiful appearance, she easily won the favor of her master, Ouyang Batian. She once again lived the life of a young miss. However, her dream of meeting her family was also cut off. In order to protect her family and the people she loved, the helpless her could only step into the life that had been designed for her. She had survived by relying on the little memories she had when she was young. However, when the other truth of the matter was slowly revealed, hatred and gratitude pushed her into the abyss of despair again..