Global: Cosplaying as Genshin Impact's Captain and Blasting Through the Abyss

Looking for Stories About Capitano, the Fatui Harbinger from Genshin Impact

Are there any with a couple? I want to read one with a couple.

I Want to Read About the Fatui Harbingers Entering the National Destiny Battlefield, Either Possessing Someone or as Themselves

Looking for Genshin Impact or Honkai: Star Rail Stories About National Fate or Rule-Based Horror

I'd like to read something like *Honkai: Star Rail's National Destiny: Invincible from the Start by Playing Jing Yuan*. Ideally, the protagonist plays a character from Star Rail or Genshin Impact. Even better if they can get close to the real character they're playing: Luocha, Blade, Dan Heng • Imbibitor Lunae, Jing Yuan, Wanderer, Zhongli, Alhaitham, Venti...