[2nd Person]
Based of the anime, Zero no Tsukaima.

Anon, transported to Equestia via magic, has found himself in the servitude of a unicorn.
With no way to turn back and the aid of the six ponies that summoned him, Anon tries to work his way around, all the while trying to keep his mistress happy.
The problem is she's a little protective of him, and is maybe even a little bit jealous of the attention he pays her friends.