Genshin impact University au :Ei the egg

A bit of lore:

Ei and her sister used to be the head of a university until her sister died.Even tho it was already very hard to enter to it after the death it slowly started to get more and more picky for who was chosen…
At last in the lucky few who was accepted to the uni was a student with the goal of getting entered to all of the universities that are connected to a incident code named “teyvat”

Oh before forgetting: yea miko and Ei are exes that still couldn’t get over each other