Genshin Impact: a Book of Cherishing and Burial

I'm a new author, so I hope you'll take care of me. This is an IF line from "Genshin Impact". The plot probably begins to diverge from the main line of the game after the traveler ends Xumi's journey, so the subsequent plot will not completely follow the main line of the game, and there is no need to regard it as a prediction of the future plot of the original work. I just want to write, if one day, the disaster of world destruction really comes to the world, and Teyvat is about to come to an end, what will everyone do? The Gods' Endgame, Knights and Adventurers Counterattack, and The Book of Mortals. That's probably it. Yes, this is a story about a group of people in Teyvat who suffered a disaster, and no one can survive alone. Intention: In the face of disaster, the value of life does not disappear because of its insignificance