Lore: Sans was much lazier in the underground in the future, and he goes back to sleep and having a dream about laziness, but suddenly the unknown black person appears, and says "Wake up, Sans. This is not real on your world. I will give you one time to make a deal. Do not be afraid." then he deals it, and he wakes up, his eyes were circled, and his smile was normal than usual, before frisk finally beat flowey on the omega form, and he rans away, he appeared, and he wants to help, now to team up and regain to kill those monsters, to create a hallucinating gore one of a kind, sans was mentally insane, flowey was transferred in the eyes, suffering in the darkness, killed everyone.

@sprunki_wenda