Ice-Devil's-Slave

A violent, short-tempered hottie named Gray Fullbuster, gets to have an innocent 'slave' who wants nothing more but sunshine and rainbows named Juvia Lockser.

But because of their differences, the two stumbles on many obstacles, causings lots of problems.

But oppsites attract, right?

Read as the so-called demon, falls in love with his own slave who's just a sweet cinnamon roll who wants a normal life.