While I'm glad someone is taking the courage to write a shadow slave fanfic but I'm pretty sure you can take your nightmare trial only once and if you fail , you'll turn into a nightmare or open the realm for a nightmare .
Wait. So can anyone redo their nightmare? I remember that that's not the case for the original SS, so is this a change unique to your fanfic? Or can only the MC for this fic retry the nightmare?
John_Doe_777:He will die once he gives up on the trial. That's how I designed the Nightmare. I know it is looking kinda easy with him reviving over and over; however, I want you to recall the definition of insanity.