Cult Secret Identity, but in Teyvat

Cultist Simulator is a mysterious strategy card game in which players take on the role of a seeker of hidden knowledge, delving ever deeper into the study of forbidden arts and rituals.

As the devoted player Ninia was about to ascend, excitement made her black out. When she woke, she found herself transmigrated into a strange new world: the fantasy continent known as Teyvat.

Looking at the inexplicably bound Cultist secret identity System and Teyvat's worship of the Seven, Ninia fell into deep thought. This... didn't seem very compatible.

A pale, sickly cultivator arrives in Snezhnaya. With devout faith and an uncanny talent for manipulating people, she becomes the only Harbinger on the conciliatory side under the Tsaritsa. She is currently traveling the land to spread the Winter God's doctrine. Only later does everyone realize that when this person says "until the harsh winter arrives," she might possibly mean something different from the other Fatui Harbingers?

A mysterious wandering youth, suspected to be from Enkanomiya, is a master of the secrets of forging. He is quickly recruited by the Tatarasuna swordsmithy, only to be betrayed not long afterward and lose his heart. The youth drags his dying body into the furnace's blazing heart, leaving behind his final words: "On the day of thunder, I shall return."

A Nightwatcher wielding a radiant light appears in Sumeru City. Exceptionally learned yet unconventional, he is rumored to possess the [Key to All Doors], capable of opening a thousand gates. A nameless mercenary who represents the end moves in mysterious ways. His weapon, the [Scissors of Arakha City], first cuts hair, then fingers, then everything else...

Reader's guide:

- Ready to read as soon as you open it. I'll do my best to make sure you can enjoy the story even if you're unfamiliar with Cultist Simulator.

- Expect some headcanon. You're welcome to point out anything I've missed, and to offer criticism and corrections.

Theme: A devout heart and wise eyes.