You woke up in Snowdin, well, not your Snowdin as you were on Ebbot Island in a completely different AU. Humans and Monsters are now peaceful, but due to a truce from Error!Sans and Ink!Sans (and the Corruption on Error!Sans that left and anomaly that had spread to the AU but not to the island due to Toriel, the queen, sacrificing herself to create a barrier that'll protect the AU and island) the pacifist, genocidal, and neutral routes clash and fragment into 22 parts for the AU, now with your friend, Tamara, you and her must put them together to recover her reset ability and restore order to her world, bringing back her mother and friends. You are now in the Multiverse with her as you and her walk, looking for the fragments; she looks at you. (and btw, she's 19 and a princess.)

T: "Well, here we are, the Undertale Multiverse."