Dark Crossing

Shen Ting, an elite police officer known for his integrity, outstanding combat skills, and unwavering sense of justice, goes undercover by assuming the identity of the younger brother of a drug syndicate boss due to their striking resemblance. He disguises himself as a seemingly harmless playboy and delinquent heir - a complete contrast to his true identity as a highly capable and respected police officer.

The gang boss, Chu Huainan, is cunning, ruthless, wealthy, and seemingly capable of anything. Years ago, Shen Ting once saved his life, and Chu Huainan fell in love at first sight. After they meet again, Chu Huainan quickly sees through Shen Ting's undercover identity but chooses not to expose him. Instead, he takes the opportunity to pursue the "fake" young master openly, and the two gradually begin a complicated and close relationship.

The case they investigate together is tied to an unsolved case from more than a decade ago, one that is closely connected to the deaths of both of their respective family members. As the investigation intertwine, Shen Ting's true identity is eventually revealed, and their relationship evolves from mutual suspicion into an alliance built on trust.

• Chu Huainan, despite his cold and dangerous exterior, is fiercely protective of the person he loves - very much a "wife-protecting demon king" type.

• Shen Ting, meanwhile, is reserved and traditional by nature, making him hesitant to acknowledge his feelings.

Their relationship becomes a constant push and pull: Shen Ting reluctantly accepting Chu Huainan's pursuit for the sake of the mission, while Chu Huainan knowingly plays along with the charade despite already understanding everything.

Both are clever and calculating, making their interactions feel like a battle of two old foxes - full of tension, teasing, and sweetness.

Through a series of smaller cases, they eventually uncover the truth behind the major case from over ten years ago.