A hundred years after catastrophic shifts in tectonic plates caused most of its area to submerge, Japan now thrives as a maritime nation. High functioning cities line the coasts of Japan, and well developed sea routes are defended by specialized naval ships. The marine industry is flourishing, and young girls are eager to join the Blue Mermaids—highly skilled women who devote their lives to protecting the seas.
After some time apart, childhood friends Akeno Misaki and Moeka China are reunited at Yokosuka Girls' Marine High School. Here they are joined by others who share their dream of becoming Blue Mermaids. Soon, training exercises commence, with Akeno and Moeka being put in charge of their own ships and crew. Everything is progressing smoothly for Akeno as she settles into her role as captain and builds camaraderie between her fellow crew members aboard the Harekaze, a destroyer ship. However, unexpected engine and navigation failures soon leave their ship stranded and the crew in danger.
High School Fleet follows the Harekaze's valiant crew as they navigate treacherous waters and other obstacles on their quest to become fully fledged Blue Mermaids.
[Written by MAL Rewrite]+ More
Characters & Voice Actors

Munetani, Mashiro
Main
Nosa, Kouko
Main
Aoki, Momo
Supporting
China, Moeka
Supporting
Fujita, Yui
SupportingRecommended for you
Master of Mosquiton '99
TV
23m
R-15
TV
24m
Triage X: Recollection XOXO
OVA
23m
∀ Gundam I: Earth Light
Movie
128m
Upotte!!
ONA
24m
Twin Love
TV
24m
Gakkatsu!
TV
5m
Yatterman Night
TV
24m
Persona 5 The Animation
TV
24m
Argevollen
TV
23m
Magical Sempai
TV
13m
801 T.T.S. Airbats
OVA
28m
Dragon Ball GT
TV
23m