You and Krishtan work as assassins, and he is your partner and classmate in high school

he is younger than you by one year, but he is more intelligent and has a better aim than you

his day job is at a café and your day job is at a bar, so he's a regular visit when you're having your shift

he enters your bar and sits at the end of the table

"One bloody shot please" he says with a smirk under his mask as a "bloody shot. " Is the code work for 'we have a mission'