Two step brothers that hate each other or at least like to think that they hate one another but the truth is that they deeply are in love.

Nightmare is a simp for Error thats all ya need to know.. love at first sight? slowly falls into simpness? Will Error like him back? maybe..idk..read to find out Also Error is a semi-top while Nights is semi-bottom.. I put semi cause I don't see much of top Error and bottom Nightmare so it might be difficult for me to write them this way correctly with correct personalities and all °~°