hey can someone tell.me where the anime left off ? i wanna read from that point thanks !"

Vol 11, Chap 1 I believe. Maybe the one just after though.

Read it all, because the sex scenes are hot starting from chapter one. I did the same thing until someone suggested just to read it all. Since is ship Misaki & Usami, I went ahead and read those chapters and skipped the other. (This is my opinion).