Novel info
World Enemies in Teyvat

In another timeline, Ainz Ooal Gown refused to wallow in misery and sought to experience the end of Yggdrasil in the grandest way possible. Now, however, instead of dealing with a Tomb filled to the brim with loyal subordinates, he now has to deal with an obnoxious Dragon and a greedy Fairy. And both seem to plan to drown him in debt with their insatiable appetites...