Shortly after the whole ordeal with the North Korean attack, which ended up causing a major international incident, Alex decided he needed a break from all the current things that were happening in his life. And thus he texted each of the women who had accepted him as their lover and told them that they would be going on his yacht when the weekend finally arrived.
The girls invited were naturally his stepmother and stepsisters, Sakura and Dal. For the sake of being a gentleman, Alex extended the offer to Dal's mother and Sakura's. But he did not tell the girls that. After all, he owed one of the women for patching him up after that nasty business with Dae-Hyun, and the other for allowing him to spend the night, which enabled him to take advantage of Sakura.
