Not sure but there is funny one where a grown ass adult suddenly becomes an actor and it's so funny. It's called I Was Immediately Mistaken for a Monster Genius Actor
Currently reading that too, his inner thought is cracking me ε=ε=(ノ≧∇≦)ノ
“Brother, am I cute??“ is kinda like that, mc gets famous together with his very much younger brother
Oh reading that too, siha is so cute (ᗒᗩᗕ)
other than superstar from age 0 and The Life start as child actor, is there another child reincarnated to be come an idol like these cutesiess ( ꈍᴗꈍ)