She shares many characteristics with the Hiyou-class such as being a shikigami-using onmyouji, wielding a flight deck scroll and some clothing choices.
She wears a maroon/dark red kariginu-like vest over a white shirt, a black skirt (held with suspenders in her remodeled portrait), a magatama and some sort of necklace. She emits blue flames with text reading "Imperial Edict" which is probably what she uses to control her shikigami. She has brown hair in twintails and she wears a visor cap resembling a ship's bow. Overall, she also looks smaller and younger than all of the other carriers, having a visibly flat chest.
Her second remodel gives her a different shirt collar with three magatama hung under, her skirt gains white stripes along the brim, a golden flight deck scroll, with the necklace attached to the scroll and her blue flames are now golden as well.
Alternate costumes
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She has Christmas portraits for her first and second remodels. Her first portrait (first remodel) has her with a red-with-white-fur-trimmed version of her signature vest, argyle pantyhose, tiny skis under her platform shoes, a santa hat with her visor sideways and a sack. Her second portrait (second remodel) gives her the vest, her mini-visor and the ski shoes; adapted for this remodel as well as whitepantyhose, tiny present boxes in her sack, a set of cat ears and tail and her flight deck scroll has been redrawn with a christmas tree on the deck and presents where the AA guns should be. With her "Holy Night" flames, she can use her Shikigami plane-sleighs propelled with fireworks and paper reindeer to deliver presents.
She was given an (unimplemented) alternate costume for Christmas 2015 termed the Opportune Snow outfit ("瑞雪") after the characters she produces in her flames. It consists of a white and red long-sleeved one piece sailor dress with a blue collar and scarf holder with a yellow neckerchief. It has fur trim on the hem and on the seam where the shirt and the sleeves meet. Her usual white shirt's collar pokes out of the sailor collar and is adorned with a bell. Under the dress, she wears fur trimmed shorts and pantyhose.
She talks in Kansai-ben; often nicknamed "RJ" and, with her cap, somewhat resembles a McDonald's worker. Near-constant victim of breast envy in fanworks. Ironically, her game introduction line has her being proud of the "distinctive silhouette" and she never shows or speaks of being envious of other girls' bosoms. She also isn't the only flat chested carrier in the game either (Houshou, Zuikaku, Katsuragi, Taihou, and Zuihou).
History
In real life, Ryuujou was designed to exploit a loophole in the original Washington Naval Treaty that excluded carriers from total tonnage if they weighed 8,000 tons or less. To that end, she was given a slim cruiser hull, no armor, and a single hangar. However, the 1930 London Naval Treaty closed the loophole, while IJN planners insisted on doubling her air group so a second hangar was placed atop the original, leaving her as the only ship of her class and suffering from questionable seakeeping and stability. She was rebuilt after sustaining storm damage in 1935.
She was later sunk by bombers from the Saratoga in the battle of the Eastern Solomons in the 24th of August 1942, her survivors being rescued by Amatsukaze and Tokitsukaze. In the context of the game, this gives Ryuujou another reason to scorn Saratoga as she has large breasts. References to her relations with the two aforementioned destroyers tend to be rarer.
