How to Play a Big Shot with Multiple Secret Identities

Here's what happened: I transmigrated into someone else's body. This person was vicious, a thrill-seeker, and an identity collector. She collected memberships in different organizations, not men. She had so many secret identities, they were like all the clams I'd just poured into a pot. I don't know what kind of tentacled monster and shadow-clone technique it would take to be in so many organizations at once. I only know that if anyone finds out I'm not the original, I'll be dead in three sentences. So starting today, I'm going to be vicious, a thrill-seeker, and completely devoted to the Port Mafia. Even if the boss tells me to get lost and my coworkers beg me to leave them alone, I'll stay devoted. My perfect disguise was almost exposed by a traitor in glasses. To stop him from revealing that I'm a traitor, too, I made him my boyfriend. P.S. 1. First-person, chuuni, silly wish-fulfillment story. Ever since the protagonist developed a mental illness, she's been much more spirited. Everyone may end up being victimized. 2. Short story, pairing with Ango. 3. A crossover of Bungo Stray Dogs, Jujutsu Kaisen, and Detective Conan. Theme: Cast aside meaningless lies and start over.