Dobrynya Nikitich

She is actually Dobrynya's wife Nastasia (in this work, it has the characteristics of both Mikrishna and Nikrishna), who has manifested using his Saint Graph, similar to Artemis using Orion's, who has appeared in the world while disguising her real True Name. It could be possible that Nastasia was worried that her young and polite husband Nikitich would become popular in the world, or that there was some trouble on the side of the Chaldea Security Organization's summoning ceremony.