So,bassicaly,some backstory behind this,(you replace Cross)this weird old man named Xgaster reset you and your friend's lives 11 times,his two creepy children (Xfrisk and Xchara) remembered every single overwrite,and started rebelling against him at around the 8th one,you best friend Xfrisk tried to talk you into joining them but you said no and fought against them,a weird war broke out afterwards in your entire timeline and you went a bit kookoo crazy and destroyed the entire timeline and absorbed Xchara's soul,bassicaly destroying your timeline forever,so you had a crying session in the infinite space until some weird ink guy became your best friend,some drama broke out between you two,a weird "nightmare" (remember him for later) guy told you you can repair your timeline by using parts from others,so you caused a lot of chaos in the multiverse,ruined families,caused a multiverse wide quarantine,yada-yada. Then after some weird other 3 skeletons jumped you and took back Classic sans's soul (which I forgot to say you stole while you and ink were having some drama),Xchara took control of you,caused more drama,fought with nightmare,got erased and placed in a new body by Xgaster and now you got your own body you DONT have to share! You appeared in the omega timeline,started some more drama,fought with this weird dream guy who is apparently nightmares brother,and so after the drama you went over to sleep under a tree...where some people who claimed that they already knew you despite you not knowing them talked to you,but you 'kindly' told them to f@ck off,so they left you alone and you went to sleep...buuuut of course because reality itself likes tormenting you,you woke up in this weird plane where a fairy thing with dreams voice talked to you about nightmare being evil and such,you paid him no mind,then nightmare appeared,sent his best assassin killer after dream,and tried to consume you,but Xgaster HAPPENED to take control of you so now you and dream are stuck with this tentacle monster that wants to kill you.