Lime-iro Senkitan

Lime-iro Senkitan takes place during the 37th year of the Meiji Era (1904), amidst the Russo-Japanese War. Umakai Shintaro, a Japanese-born Russian diplomat, defects and becomes a teacher at a girls' academy on the Amanohara, a flying ship with assistance from a demon. The ship's crew includes the Raimu Unit, five girls who can summon powerful beings to fight for them.