you have been friends since childhood and your paths diverged only when you and your parents went to Liyue, and Kaeya stayed to live in Mondstadt.

but you came back a few years later.

and now, you and Kaeya are both adults, sitting at the table of the tavern "Share of Angels" and drinking dandelion wine.

"oh.. it's been so long, hasn't it?"

he's smiling at you.