Eyun School

The Eyun School is an organisation from the novel The Langya List (introduced chapter 85 of the webnovel), and the show Nirvana in Fire. It's a jianghu sect.

It teaches the Eyun Method ( 遏云剑法, also named: E Yun Sword Style, Cloud Stopping Sword Style, Containing Clouds Swordmandship, Cloud Subduing technique).

Adaptations
It is mentioned for the first time in episode 19 of the show.