Childhood friends Akeno Misaki and Moeka China have dreamed for years of becoming 'Blue Mermaids', i.e, students at the Yokosuka Girls Marine High School, which is a place where WWII-era warships are used to teach modern-day girls necessary skills. After being separated for years, they both earn admission and are made captains of two different ships. But something goes very wrong during their first venture at sea.
|High School Fleet||Unevaluated||See Hai-Furi|
|Unevaluated||Five girls live in 19th century London, a city within the Albion Kingdom divided into east and west by a large wall. The girls serve as undercover spies enrolled as students at the prestigious Queen's Mayfair school. The girls make use of their individual abilities to remain active in the underground world of disguise, espionage, infiltration, and car chases.|
|プリンセス・プリンシパル||Unevaluated||See Princess Principal|