High School Fleet

The story takes place in the distant future. At that time, the activities of the continental plates caused the seawater to gradually submerge most of Japan's land, and people had to build new cities on the sea. As time goes by, the scale of the maritime city becomes larger and larger, and the routes become more and more complex. In order to maintain order, a new profession called "Blue Mermaid" is gradually accepted and admired by the public. This glorious profession has also become the future goal of many female high school students. The lively, cheerful and optimistic Akeno Misaki (voiced by Natsukawa Shiina), the taciturn Mashiro Sotani (voiced by Lynn) who is cold on the outside and hot on the inside, the shy and introverted Shima Tateishi but very cute in front of acquaintances (voiced by Nozomi Furuki), and the arrogant and poisonous Mei Nishizaki (voiced by Tanezaki Atsumi) who is very concerned about her height. Can these girls with different personalities realize their ideals?