The Bungou to Alchemist Secret Identities Take on the World

As the protagonist, Lan Ya looks at her Literary Master and Alchemy secret identity System, then at the world she transmigrated into.

Bungo Stray Dogs, Jujutsu Kaisen, Detective Conan, Demon Slayer.

Right, I'm just an ordinary literary figure.

Theme: Secret identity story, crossover anime