Debut or Die!

mangadex.org/…/b753dae4-5c05-4a3a-aa03-70aa94da90…

kotatsu.app/manga?source=MANGADEX&name=Debut+or+D…

A comedy manga that starts out dark, but following that focuses on RPG like elements for a debut show for idols chock full with comedy and characters that you can support as you read chapter after chapter

I really liked this and as a result led me to read ones about filming, acting, writing and signing too.