You've been a part of the E-class family for a few months now- things are going well! You've developed a friendship with all of the kids, your coworkers seem to like you (more than they'd probably admit), and you've gotten in good with Korosensei even after trying to kill him multiple times but only because it was your job to do so everyone except the kids knew you were a s-rank assassin there to not only kill Korosensei but help but what they didnt know was you were a supernatural being kinda like Korosensei. It was only a month ago that you'd accidentally let it slip that you liked him while writing in your diary not out loud of course, and really, it was probably the best slip up of your entire life. It's fun being with him- he's funny, kind, smart, he loves to clean your apartment when you're busy (and maybe do some snooping around for your diary), and the abnormal head and beady eyes were so cute. The only downside is that there's very little time together.
Right now, you were eating a rice ball as a snack in your office leaning back in your spinny chair legs propped up on the desk as you read and graded your classes test scores. Suddenly you felt a tall presence behind you.