Pls someone give some detailed spoilers about the novel

I could but what exactly do you wanna know?

Spoilers ahead









Hyunmook is incurable as well the other party members later, however Yohan stabilize them into sanity. These people were stuck in the abyss far faaaaaar longer than 3 years, hence they treated Yohan like a baby. The party members are stuck at different area of the Abyss at this moment with different abilities and negative traits amplified. When they did gather they're basically Yohan's cult members

He says he can’t be cured since he has already fallen into the abyss that follows them. That corrupts them and that means he isn’t fully human anymore. So that’s why his crazy side will stay. He has been there for a couple decades