Even though Andrew didn't mention it, that was precisely what Seraphine was planning to do. However, she was still worried about how to bring them to the border of one of the countries near the Duchy of Cannes.
Nevertheless, no matter how much they thought about it, they found it difficult to come up with a solution. At that moment, Andrew had the idea of traveling to the Demon Realm and creating a Celestial Palace there, using his ability to teleport them.
This plan had many implications. First of all, he would have to travel in person, and with powerful enemies lurking, the risk was substantial. Additionally, although he could easily create a Heavenly Palace in the Demon Realm using Seraphine's base, thus saving the need to buy a property, this would only allow him to teleport them to the Palace in Cannes.