Crown Prince Virion separated with Lusha and her team. He and the three Elven hostages immediately went back to Elven's territory. They traveled within the maximum since the hostages were fine. They did not suffer any forms of torture and were not starved either, so Virion just went back at full speed.
As soon as he returned, The Elven King and the nine Elders were waiting for him. The Elven King Revalor noticed that Aleesa was not his son, and the hostages returned safely. It was clear that The Emperor accepted their conditions, and Aleesa immediately stayed with The Emperor.
Revalor was not surprised by that since Aleesa was the prettiest even amongst the Elven. The human Emperor must get captivated by her and agreed with the condition, why Aleesa volunteered by herself. Because she knew that her charm was irresistible. If it was a spoiled Elven Princess, there was a chance that the Human Emperor would refuse the condition.