Seiryuu, being a Mizuryuu, is very honored that Astri is there, but his mind is now strict about keeping her safe. His mind is very much like making sure his people are fine; the others are not his responsibility. Each continent should take care of its own, and he doesn't believe the other continent is sacred enough to have Astri there.
"Lord Seiryuu, I understand your worries. And I'll gladly come live here periodically, it's an amazing place. But if the world is not balanced, evil will come here, and even the Mizuryuus won't be capable of keeping the balance. Because once it arrives here, it's because the evil is too strong for you to handle. I cannot let this happen. It's not your duty to take care of other places, and neither their duty to keep you safe, but wanting or not, you affect each other. And I'm the one who needs to keep everyone in a good balance, so you don't affect each other in a bad way. Can you understand?" Astri explains.
