Nightmares POV
After error carried me out of the anti-void we were met by the gang. They had stayed in the same AU that both error and ink had gone to overdrive...they immediately ran to us and tackled us down...Error only groaned. Soon the gang had calmed down and were all happy to see the real error back, the gang had been talking for quite a while now. I looked for Error and saw him sitting against a tree...the snow under him was no longer perfectly white but it was a vibrant red..I walked over to him in concern. Error was healing himself spreading his magic through himself...I saw how his face would scrunch up in pain, when the pain became unbearable to even touch. Error noticed me walking over to him and gave me a weak smile..he soon finished all the damage that had been done to him by the time I got there, I sat besides him and said

(Nightmare) " you ok?"

(Error) " I'm alright"

(Nightmare) " are you sure? It kinda looked like you were in tremendous pain when you were healing yourself.."

(Error) " yeah I'm fine now..thankfully I had enough power the heal myself.."

(Nightmare) ".....Error....."

(Error) " yeah night?"

(Nightmare) ".....why do you think ink was in overdrive mood? And how did you go into overdrive so quickly?"

(Error) " well..I'm not sure about ink going into overdrive..maybe he just wanted to...get to get rid of me for good, me being his immortal enemy and all. And well his overdrive triggered mine..."

(Nightmare) "...does it hurt when you go into overdrive?"

(Error) " what? No no no...it's not like that at all...it just.."

(Nightmare) " it's just?"

(Error) " it's just that the overdrive make you go into a certain fight mode, and that fight mode make you stronger,faster and smarter but it also blocks off your memories...so you would be able to terminate you opponent with more...ease."

(Nightmare) " so it make you forget?"

(Error) " I'm a way, the overdrive only blocks your memories not erases them...it just kinda pushes your memory far back in your brain....and the overdrive doesn't let us remember what happened during the fight..making it easier to forget that guilt"

(Nightmare) " ...so when you go into overdrive mode it blocks of your memories making you forget me and the gang?"

(Error) " well...that's what's supposed to happen..but.."

(Nightmare) "....but what?

(Error) " But...I'm a glitch, so when I go into overdrive, I don't forget anything..I don't forget you or the gang or any of my past memories..the only thing I do forget is what happens during the fight..which means the overdrive can't block off my memories no matter how hard it tries it just can't, since I'm a glitch"

(Nightmare) "..Error..I-i didn't mean to offend you.."

(Error) " no no, it's ok night.. you didn't offend me"

(Nightmare) "ok. So in overdrive you dont forget you memories but you do forget what happens during the fight. While for other monsters they do forget their memories temporarily and forget what happens during the fight?"

(Error) " exactly"

(Nightmare) " oh ok I understand now"

(Error) "........"

(Nightmare) " error...can I ask you one more thing babe?"

(Error) " [////_\\\\] uh sure night..."

(Nightmare) " can you describe to me what happened the day you fell right in front of me while we were taking( the incident)"

(Error) " oH tHaT...."

(Nightmare) "!!! I mean you don't have to tell me if it bothers you!"

(Error) " no no, I want you to know...I'm sorry about my voice..you just caught me a bit of guard..."

(Nightmare) " are you sure?"

(Error) " yes night, I want you to know"

(Nightmare) " ok"

-error explains-

" on the day that I collapsed before you...I was in my mind...I could never really remember my past only my present life...so the day I collapsed I saw everything..my past and present... I remembered my past and watched it like a slide show in my mind..I saw my AU called "underfect" I remembered how my AU was..it was based off war and there were 3 main routes. Meaning that I had one more route then any other AU.  In my AU the theme was war....I was a solider like any other..just like my brother papyrus of...detect. My name in my AU was oversight..or defect for short...I was the strongest monster in the underground...but that didn't stop the humans..we were in a war...a war between man and monster...and every time frisk would reset the war would commence once again...the routes were never pacifist...there was only violence in every route there was always someone on the ground lying limp and pale...I was in the royal guard along with my brother detect...I would always be the one to remember every time they reset..and over time my hate that grew towards frisk was uncontrollable...I would curse and fight until my bones could no more...I watched my brother die countless times in a war and in the cruelest way possible...each route meant blood would be spilled..no one was safe..I soon grew tired of the war unable to feel victory..but i would never stop..I couldn't let those humans beat us, so each time I stood my ground and fought. I was always one of the last monsters to be slaughtered...but my brother wouldn't last very long...papyrus always had a big heart..he couldn't change he was just to caring...he still had hope in the filthy creatures..he still had hope that they had some good in them..but that kindness he had would always lead to his demise..no matter how much I talked to him..no matter how much I begged or yelled papyrus wouldn't change...he just couldn't..it wasn't in him to hate..it just wasn't in him. So each time i watched as my brother was slaughtered right beneath my nose...and I couldn't stop it...no matter how many times I tried to take it hits no matter how I tried to save him he would always end up dead...my anger..soon grew out of control..I killed humans without remorse or guilt..I could slaughter about 3000 humans without even trying...my brother grew worried about me and my anger but..I pushed him away...and each time a human would even dare raise a hand at my brother I would slaughter them within seconds...my brother could only beg me to stop but I would always answer " papyrus you have to knock it off..you need to snap out of it bro..this is a war, you can't be fantasizing anymore..this is reality paps...they aren't ever going to change..the despise us monsters and we despise them." Papyrus would understand , but he was stubborn as hell and still held hope..but every time the human would kill me in front of paps...papyrus would cry but he would become angry and he would slaughter the humans without remorse as well..it's like if I was the only thing giving him hope...and we lived like that..reset after reset...no rest and no hope was ever shown..other than by my brother. Then one day the human decided to reset...but instead of resting my AU crumbled..humans and monsters both screamed and yelled for mercy...but it never came I watched as everything that I ever knew was taken away from me..I watched as the king died I watched how my brother begged me for help...I watched as everyone I ever cared for was dusted...I even watched those filthy creatures fell and asked for mercy...my AU burned and everything and everyone had disintegrated...soon there was nothing but white..I was the only one remaining...I didn't burn..I didn't dust..I didn't disappear..only I remained..I begged and cried for my loved ones to come back..but no one came. I had watched as FATE had taken everything away from me..I was alone just like FATE wanted..she tortured me and played with me..I became insane...and numb...i felt like nothing.
Then fate forced me to destroy..with the magic she had forced into me....I forgot everything. I was blinded by pain...until I met you guys...and well you changed my life..you guys changed me...you brought out the good side in me.."
-end of explication-

(Error) "heh guess my bro was right..there is still some good even in the worst of monsters like me..."

(Nightmare) " Error I-I'm so sorry..I-i didn't know.."

(Error) " oh nighty don't cry.."

-Error hugs nightmare and brings night into his lap-

(Nightmare) " I-I'm sorry! I'm sorry I didn't know! I'm sorry I didn't support you when you needed me!"

(Error) " nightmare..it isn't you fault..on contrary it's because of you that I'm the monster that I am today"

(Nightmare) " I should've been ther-"

-Error kisses nightmare-

(Error) " -catches breathe- nightmare look at me..it's not your fault. I love you. You didn't know so it's not your fault don't panic ok?"

(Nightmare) " o-ok"

(Error) "I love you night"

(Nightmare) " I-I love you too ruru"

(Error) " we should get going before ink decided to come back"

(Nightmare) " ok"

-Error kisses nightmare one more time and tells him-

(Error) " I cant wait to get some rest after what happens today."

(Nightmare) " ////-\\\\" " m-me t-too"