Showbiz regression time!

Not regression but mc got a chance to change his life.
Still 1 chap tho, will come back later~

Idol regression with system
The guilt tripping in this one is so baadd. The system way of threatening is way too aggressive.. poor mc..

Idol survival show's Evil PD regressed into alternate universe
and became an idol then somehow ended up compete in his own past show.

Not really idol. MC is a successful chaebol in his past life, died, and the regressed to the past in alternate universe where he no longer a son of rich family. He later became a child actor.