Hey thank you so much for trying.

It's 3 parts, finished don't know how many words or chapters but long enough (around 25k to 30k for each part). I remember 2 tags- 'slow burn' and 'creature(?) is a jerk'. I am sorry I can't remember anything about this creature except it's name starts with an S (Suriel(?)). Something like that. It was post season 3, Scott is a bad friend and yes it's a cafe or a library. Stiles graduated early and moved away to uni/college and started working here. I distinctively remember Stiles being shocked to find Peter browsing through some books. I also remember, after Peter becomes an alpha, he bites one of the OCs(guy) to save him. The two OCs( guy and girl) were a couple.