As Kaveh booted up Genshin Impact to play with some of his friends "Can you guys help me with an artifact domain? I'm trying to build for the upcoming character." Kaveh asked with a sheepish smile, to which his friends agreed as they all joined his world.

And who else would the character be but you?

The only reason he started playing was because he saw you on his friend's screen during a story quest and he just HAD to ask who that was, and of course.. That led to him grinding for you.