Sans became insane and wanted to just finally get rid of chara, when he does, he then meets another version of himself named Error. Error gives him the power to warp to different Au's to help destroy! When Dust stumbles apon an adorable land, he is face to face with a cutie potato baby (Aka, blueberry sans) Blue pleads for him to stop and in return will go with him forever and do what ever he wishes, So dust takes the offer and after much of torturing, lustfull actions, and abusive words, he came to realize he loves him...