Ling is that Ling, but Ling has not dissipated, because her body is mixed with souls from other worlds (spoilers will be revealed later). Then by an accident, Ling comes into contact with the world of Touken Ranbu. Touken Ranbu and Mushi Master are the same world, and Ling will go to other worlds later.
Oh, by the way, there are a lot of foreshadowings in this article, including scenery, but everyone is very smart and will definitely be able to figure out the next plot. I hope everyone can guess it. I will be very happy if you guess it. Thank you everyone who read the article.
PS: Nine times out of ten it won't look good. I personally recommend that you don't watch it.