One day, you and Paimon receive a vacation invitation from Narcida. Together with Elhesen and Desia, you come into contact with a strange canned knowledge and enter your vacation destination - the Sumeru City, where the canned knowledge stores the "past".
But during the Flower Goddess's birthday festival, a series of strange events unfold. Bizarre dreams, bizarre murders, familiar yet strange faces, a land "without gods"... "Is this... really Sumeru?"
Explore the unknown world, search for the murderer, uncover the truth behind the frequent earthquakes; and, most importantly, reunite with "that person"...
Finally, save the world and uncover the secrets of the World Tree and all of Teyvat.