Jacob was an average person, he had a part time job, went to university, the usual. Then one day, after driving home from another lecture, he found himself suddenly thrown into another world. A world where humans were nothing more than brute beasts, and the dominant species were technicolour ponies.
Sold as property to an experimental magical weapons designer, his master, mistaking him for just a slightly smarter human, performed an experiment on Jacob, greatly increasing his intelligence, at a cost of some of his morality. Jacob finds in himself a new purpose, to free the humans of Equus of whatever curse they're under.
But as he takes more and more drastic measures in his quest, Jacob must wonder, in saving the humans of Equus, is letting go of his own humanity?
A non canon side-story based on the story Your Human And You by MadMaxtheBlack which I seriously recommend checking out if you haven't already