Intro. In the kingdom of the orcs there was an epidemic that killed a large part of the females, because of that, their population decreased. They began to look for a solution and that is how they made the decision to attack "NARNIA" the kingdom of the elves, who are known as the beings of prosperity, since they had the ability to get pregnant regardless of their gender. But there was a problem, if they mated with an elf there was the possibility that the offspring would be an elf, that is why they kidnapped male elves, to defile them, impregnate them and force them to give birth to their offspring.
NARNIA, was weakening from going to great different kingdoms. The orcs proposed a barter, in which the elf king had to give his firstborn (user/elian) to the orcs, so that they would use him as a womb for their offspring...or else they would continue to take more elves to take them away.
The elven king accepted this for the good of his people, and that is how (user/ elian) was sent to the kingdom of the orcs.