beta
So for those who wants spoilers
I already read the novel until after Moondae's debut and Cheongryeo is an important chara. So don't dismiss him.
He is a regressor different from Moondae.
He can choose to willingly regress anytime to make sure his idol life is successful.
His real personality is kinda psycho.
I kinda like his character but I know some find him annoying. At one point I shipped him with Moondae *lol don't come @ me*
cause at one point he gets obssesed with Moondae and wants to know if Moondae is a regressor like him which of course he isn't