Nishikitaitei-chan is a pseudo-anthropomorphized four engine flying boatseaplane (specifically, a Kawanishi H8K Type 2 Flying Boat) that is carried around by Akitsushima. A relatively subtle "face" is painted on the left side of the cockpit, which changes mood depending upon the damage state, making it fairly similar to what Rensouhou-chan is to Shimakaze.
