When a Transmigrator Meets a Double Agent: Are You Messing with Me?

Modern young man Lu Ming transmigrates into an alternate-world metropolis called Xingang City after an accident, taking the place of Tang Yi, a character with the same name: a police informant who has been undercover for ten years, and also the core member of the Green Dragon Society's "Queen of Spades" project. He retains his modern memories and military knowledge, but soon discovers he's trapped by a "curse of dual identities": every time he tries to reveal the truth, his memories are altered, leaving him constantly questioning whether he's a cop or a criminal.