Gu Yan, the leader of the Gu family, the first family in country A, was upright and gentle in the early stage, but turned slightly dark in the later stage.
Xi Yan (Yu Xiangwan) is the number one killer in the world. She has black hair and red lips, is flamboyant, and is an emotional liar. She has been trained in various skills since she was a child and has mastered various personas. She is a madman tortured by masks and truth, so she seeks greater emotional excitement. She is familiar with various emotions and can act out various emotions, but she does not know her true emotions. If she had not met Gu Yan, her life would have been a complete tragedy. She is a qualified actress, but not a real person.
The first time they met, out of mission, she tricked him into falling in love with her. She said to him: "Some people yearn for the moon, and some people want to occupy the moon."
When the mission was about to be completed, she stabbed him in the heart, and he said to her: "I hate you so much, don't come back again."
Later, she left the organization and returned to her hometown to "retire". He imprisoned her, forced her, begged her to love him, and taught her to love him...
In the end, it was he who brought her back to the world.
Concept: What is love, how to love