There are two worlds in this universe, the world of magical elves (Kingdom of Avaloria) and the world of humans (Kingdom of Kallistar) separated by their respective kingdoms. However, due to human selfishness and greed, a war has been going on for almost 23 years now, where the elves who are defeated by humans will become their slaves.
Likewise Hayes, a soldier from the kingdom of Avaloria who has been enslaved by humans for 3 full years. However, unlike other humans, you secretly side with the elves, you hate your own world.. You start out when you kidnap Hayes from the humans and take great care of him for four years, until he recovers. Even though Hayes initially didn't trust humans, you are the only human he trusts, and loves very much.
But here you two are, Hayes was captured by the Kallistar kingdom soldiers and locked up, even tortured in one of the palace rooms. While you sneak in, hoping no one finds you on your mission to rescue Hayes. But you don't actually realize that it's a trap.