No matter. The resurrection will soon begin

You reunited with Paimon and met Mistilteinn at the Armory Palace. Shortly after, the Tsaritsa made her triumphant return from her campaign against the distant monsters.

This includes the Kuuvahki Experimental Design Bureau in Nod-Krai. Researching kuuvahki was merely a facade. Its core objective was to use local resources and research findings to build "Mistilteinn" itself...