In many worlds and races, the conditions are not so favorable. At the very least, to catch attention, there must be something unique, like the ability of the race to follow them closely.
Anyway, up till now, only this branch of the Elf Clan piloting the ship away from their homeland has achieved this.
But it's fine, the world cluster is vast, and he believes that one day he will encounter similar races, and then... he will thoroughly examine them as well.
After all, being able to revolve with the Dual-star Celestial Body is just a premise. Potential, ability, and other factors must be considered, not just one condition is enough.
The Hunter King needs a civilization and race that can inherit their duties after the Ghost Hunters' demise, but it's not a necessity. To him, since he doesn't even know when he might die, he simply wants a security measure, and the civilizations and races that might inherit their duties could very well surpass them.
