I know y'all trying to reference "grey ghost", but "ash princess" would probably fit the abyssals themeing more.
funny enough Code G's codename is ash.
Aircraft Carrier Ash Princess
Double reference:
1. Enty's epithet is the Grey Ghost, and 'grey' is written as 灰色 ("ash-colored") in Japanese.
2. "Ash Princess" can also refer to Cinderella (Cinder + ella).