The Queen of Dahak

What can a woman do for the sake of relatives and friends? Probably for everything. If they are threatened with death, then a real woman will not stop before a forced marriage. The main character of the book "The Queen of the Dahaks" had to save not only her beloved grandmother but also all of humanity. Naturally, not without sacrifices on her part, and all because she is the chosen one. Barbara led the life of an ordinary student: she studied, met with a fellow student, and spent a lot of time with her beloved grandmother.
Once, as a result of an attack on her house, Barbara's grandmother was badly injured. At the hospital, the doctor opened the girl's eyes to what was happening around her. The fact is that the Earth was the victim of an attack from the rockers. As a result, people are dying almost daily in our world. To help the earthlings came the inhabitants of the planet Aria. The Irenes are very similar to humans, while their civilization is much more developed in technical terms compared to the human one.
In addition, the Irenes wield magic. Among them there are both simple warriors and taori-dahak. The latter are an elite unit of scouts. Dahaks lose the ability to feel enemies if they have sex with a woman who has a special substance in her blood. This substance is found in Barbara's blood. Now she is simply obliged to go to the Selection of brides for the Dahaks, because otherwise her grandmother, and all of humanity, will die.
Naturally, an innocent student hates the very idea of becoming a concubine for one of the aliens, but she does not yet know that she is destined to become the mistress of the Dahaks, and this is a completely different matter.