Looking for Headmaster Draco

[ran-mouri.livejournal.com]

Hi everyone!
I'm looking for a fic in which Harry goes to Hogwarts and he thinks McGonagall wants him to replace her, and he finds out she's already training Draco instead, he becomes bitter and decides to investigate Draco (because he has to be doing something, right?) but in the end falls in love with him.

I know I read this and I've had no luck finding it, so I turn to you guys for help ;A;