An anime by [[Aniplex]] and [[Production IMS]] that started airing in April 2016.

[quote] 
Living by the sea, protecting the sea, and journeying across the sea... They're the Blue Mermaids!

Because of a shift in tectonic plates around 100 years ago, Japan lost much of its area to submergence. To preserve Japan's territories, coastal cities sprung up, one after the other. Eventually, they became marine cities, and along with the expansion of sea-lanes to connect them, the need arose for a sizable staff to protect the seas.

At the same time, maritime jobs were becoming more popular among women. Hence, the Blue Mermaids, tasked with keeping the seas safe, had become every female student's dream job. This is when childhood friends Akeno Misaki and Moeka China enroll in a marine high school in Yokosuka, along with other girls who share their goal of becoming a Blue Mermaid.
[/quote]

h4. External links

* "High School Fleet official website":http://www.hai-furi.com/
* "AniDB's entry on High School Fleet":http://anidb.net/perl-bin/animedb.pl?show=anime&aid=11533
* "Wikipedia's entry on High School Fleet":https://en.wikipedia.org/wiki/High_School_Fleet
はいふり ハイスクール・フリート 高校艦隊 青春波纹