I'm Both Him and Her. Can You Guess Who I Am?

Lately I've Been Into Stories Where One Person Uses Lots of Secret Identities to Act Out Different Roles

Looking for books similar to "Death Game: The Beauty Deceives the World".

A Protagonist with Tons of Secret Identities Who Uses Them to Create an Organization

Preferably set in a modern city.

I’ve Fallen in Love With No-Romance Stories and Secret Identity Novels. Any Suggestions, My Ministers?

The Protagonist Has a Female Clone Who Is Breathtakingly Beautiful

With a System.

Secret Identity Stories Where the Protagonist Never Gets Found Out, Preferably Playing Other People

Multiple Role-Playing and Crossovers Between Multiple Characters

The kind where one person plays lots of different roles.

Any Novels Where the Protagonist Can Make Clones and Build a Faction?

Each clone has a different ability

Any Male-Lead Crossover, Roleplay, Secret Identity, or Cosplay Transmigration Stories?

More Bungou Stray Dogs and Jujutsu Kaisen, please. The characters being cosplayed or impersonated can be anyone, as long as it's one of those series. Secret identities, like playing different characters in another world, are fine too. No harem stories! Nothing with too many major flaws! Ideally, the protagonist isn't a girl!

Looking for Stories Where the Protagonist’s Secret Identities Cross Over, Preferably With Spiritual Qi Revival

I want books similar to "Overturning the World: From the Start, I Play a Villainous Big Shot".

Stories Where the Female Lead Uses Multiple Secret Identities

Looking for a book like "Secret Identity: I Play an Entire Organization by Myself." Set in another world. Any gender is fine. Sweet on the outside, dark within.

Any Secret Identity Stories With No Romance Where Their Cover Isn't Blown? Or No-Romance Roleplaying Stories

Looking for books similar to Turning the World Upside Down: From the Start, I Play the Villain.