"They are my maids for life," Isdis looked at Arad, "They are coming with me,"
"That's another matter," Arad nodded, "Them being maids is different than what she meant."
"I know what she means," Isdis replied with a grin on her face, "Why not take them as well?"
Arad scratched his head, "Well, the other must approve first, and I was thinking of putting a standard," He looked at Ray and Rey, "They lack magic. I would prefer to not sustain more than Mira," Arad said.
Magic or more accurately mana, the resource needed to nourish a void egg. Out of all the girls, only Mira lacks it.
Arad can probably sustain several women like her with his mana, but that would weaken him a lot. He sees it as risking the girls and the potential eggs, which he doesn't want to allow.
"What?" Isdis stared at him.
"As I saw before," Arad looked at them, "You girls have standards like strength. I do need you to have mana, so I'm putting that as my standard."