The Demon Archon's Return

The Title Demon Archon was held by the cruelest, merciless person in Teyvat.
Someone so cruel they wouldn't even hesitate to use his own allies, let alone innocent people.
Someone so merciless that he wouldn't even bat an eye in killing a civilian.
Fortunately for the world of Teyvat, this person was sealed for a long time now... That is until a blonde traveler had awoken him.

Now, after his long slumber, the Demon Archon will begin his revenge against those that sealed him, along with those that went against him in the past.

I own nothing in this story other than the storyline, Genshin is owned by Mihoyo and the pictures used here are owned by their respective owner.

Zhou Yifan is from a Manhua called Demonic Emperor, give it a read, it is peak of villain characterization.