My chat group members are all legendary criminals.

Asian-American auxiliary police officer Lu Yiming accidentally posted an unsolved murder case into the "Legendary Criminals Chat Group." Instantly, he was treated as a new "colleague" by the group's devils. Gourmet Hannibal: "Interesting, are you making us guess your murder method?" Educator Jigsaw: "You deprived him of a chance to atone. Next time I'll teach you how to play the game." Jack the Ripper: "Why not take a part of him as a souvenir?" Chemist Walter White: "It looks like an accident, but it actually involved drugs. Young man, you still have a long way to go." Professor Moriarty: "A very talented newcomer, I have high hopes for you." Outlaw Zhang San: "I think they're all right..."... Lu Yiming plays along, continuing to play the serial killer in the group. Using the wisdom of these devils, he solves mystery after mystery in real life, rising from a lowly auxiliary police officer to a higher rank. But please don't forget: when you gaze into the abyss, the abyss also gazes into you...