It's kind of the Aranara all over again I think. This quest explains the backstory of quite a number of things in and around Sumeru, which is pretty cool. The dragons lived a long time, there was a dragon king, fungi are the best suited to live in Sumeru, what withering tumors are, and one form of oozing filth. I still don't get why there's a third form to the final fight: why even after Apep was healed? I feel like a commented negatively on this story quest more than the others. I didn't mind the story, just some of the dialogue and choices the characters made kind of took me out of it/the immersion.
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