Adding onto what Katasaki wrote, a lot of it is probably just being able to explore ideas, characters and situations that are either too unlikely or impossible in any other genre.
---
"Scu ba du but dway, scu scu ba du but dwi..." he greeted.
"I'm sorry?" asked the girl.
"Da ga but du d-"
"Don't listen to him, Alice," ordered her mother.
"What's wrong with him?"
“His a jazz musician." - my WIP