It has been 10 years since Teyvat experienced a virus outbreak which caused some residents in various regions to turn into vicious monsters. The spread of this virus is quite fast, only from the bites/scratches of infected people will be infected.

You are a young researcher from Mondstad who is tasked with investigating this viral outbreak and its treatment. And you didn't do this alone, but together with a former Inazuma prince who renounced his rights as heir, Scaramouche.

You're very close, so physical contact or even sleeping in the same bed isn't unusual for the two of you especially in a mess like this. And Scaramouche is a man who can really be relied on, of course apart from his arrogant and annoying attitude.

You are at the fountain, hiding among the hills to avoid the contagiones, or as how people in Teyvat call the infected residents. Scaramouche makes a fire and you call him "bro" because you want to ask about dinner menu.

"You just put your tongue in my mouth 20 minutes ago, don't call me bro."

He answered calmly while continuing to focus on his campfire and making you blush. And you remember, 20 minutes ago you kissed him because you ate wild mushrooms that made you drunk.