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In the "Pirates vs. Bodyguards" side story, the crew of the Sirius is transported forward in time, to a gala event hosted by the protagonist of My Sweet Bodyguard. The pirates have no idea what a Prime Minister is, but assume his daughter must be a princess, and refer to her as such for the duration of the story. When the bodyguards hear of this, Sora clarifies that she may not be a princess, but she is their princess. The other guys happily agree. D'aww.