During the day, she is the obedient daughter of the prime minister's palace, and at night, she is the chief assassin of the Yan Kingdom's number one assassin organization, codenamed "Kite", and belongs to the Yan Kingdom's crown prince. He was accidentally rescued by an organization when he was young, and was beguiled by the prince who was gentle on the surface but actually sinister. It became the sharpest knife in the prince's hand. It was later designed by the prince himself and sent to the third prince's house. Finally, he saw the true face of the prince and joined hands with the third prince to protect Dayan...
