Love of The Century

The Angel Michael has been tasked with one thing in late:
Capture (or kill) Arch Demon Asmodeus.
And they've prevailed. But why is it, that after a century later, there's news that he's still alive? Michael must investigate, and goes down to earth where the devil's last been seen. But after a shocking twist of fate, Michael is no longer able to go home, and must begrudgingly work together with the demon to return Michael to heaven, all while managing college life.
Along the way, things start to change. Can Michael keep their vow to rid of Asmodeus, or will an unexpected love of the century occur?

(Ignore the weird AI hand thing please I couldn't find a better picture)