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.
High School Fleet has finished airing and it has 12 Episodes. It is also Known as: ハイスクール・フリート, Haifuri
Genres: Navy , All Girls School , Earth , School Life , Present , Action , Alternative Present , Military
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Top 5 Anime Like High School Fleet [2026 List]
5. Blood+
Saya Otonashi is a seemingly ordinary girl living a mundane life with her adoptive family in Okinawa City. In fact, her only peculiarities are suffering from anemia and being unable to remember any of her life beyond the previous year.
However, Saya's forgotten past quickly comes back to haunt her—one night, she is attacked at school by a creature that feeds on human blood. Just when all hope seems lost, a mysterious man named Haji appears and fends off the creature temporarily. But when her rescuer forces her to drink his blood, Saya suddenly enters a trance and slays the monster with ease, using her own blood as a catalyst.
Saya then learns of an organization named Red Shield, founded for the sole purpose of defeating the hellish beasts. Now Saya and Haji must work together with Red Shield to fight these fearsome monsters and unlock the secrets to the girl's past.
Blood+ has finished airing and it has 50 Episodes. It is also Known as: ブラッドプラス, Blood Plus
4. Gate: Jieitai Kanochi nite, Kaku Tatakaeri Part 2
The second half of the Gate: Jieitai Kanochi nite, Kaku Tatakaeri anime which will cover the Fire Dragon Arc.
Several months have passed since the infamous Ginza Incident, with tensions between the Empire and JSDF escalating in the vast and mysterious "Special Region" over peace negotiations. The greed and curiosity of the global powers have also begun to grow, as reports about the technological limitations of the magical realm's archaic civilizations come to light.
Meanwhile, Lieutenant Youji Itami and his merry band of female admirers struggle to navigate the complex political intrigue that plagues the Empire's court. Despite her best efforts, Princess Piña Co Lada faces difficulties attempting to convince her father that the JSDF has no intention of conquering their kingdom. Pressured from both sides of the Gate, Itami must consider even more drastic measures to fulfill his mission.
GATE Part 2 has finished airing and it has 12 Episodes. It is also Known as: GATE 自衛隊 彼の地にて、斯く戦えり 第2クール, Gate: Thus the JSDF Fought There! Fire Dragon Arc, Gate: Jieitai Kanochi nite, Kaku Tatakaeri - Enryuu-hen
3. Gate: Jieitai Kanochi nite, Kaku Tatakaeri
Off-duty Japan Self-Defense Forces (JSDF) officer and otaku, Youji Itami, is on his way to attend a doujin convention in Ginza, Tokyo when a mysterious portal in the shape of a large gate suddenly appears. From this gate, supernatural creatures and warriors clad in medieval armor emerge, charging through the city, killing and destroying everything in their path. With swift actions, Youji saves as many lives as he can while the rest of the JSDF direct their efforts towards stopping the invasion.
Three months after the attack, Youji has been tasked with leading a special recon team, as part of a JSDF task force, that will be sent to the world beyond the gate—now being referred to as the "Special Region." They must travel into this unknown world in order to learn more about what they are dealing with and attempt to befriend the locals in hopes of creating peaceful ties with the ruling empire. But if they fail, they face the consequence of participating in a devastating war that will engulf both sides of the gate.
GATE has finished airing and it has 12 Episodes. It is also Known as: GATE（ゲート）自衛隊 彼の地にて、斯く戦えり, Gate: Thus the JSDF Fought There!, Brama: Jak rozpętała się wojna międzyświatowa
2. Code Geass: Lelouch of the Rebellion R2
One year has passed since the Black Rebellion, a failed uprising against the Holy Britannian Empire led by the masked vigilante Zero, who is now missing. At a loss without their revolutionary leader, Area 11's resistance group—the Black Knights—find themselves too powerless to combat the brutality inflicted upon the Elevens by Britannia, which has increased significantly in order to crush any hope of a future revolt.
Lelouch Lamperouge, having lost all memory of his double life, is living peacefully alongside his friends as a high school student at Ashford Academy. His former partner C.C., unable to accept this turn of events, takes it upon herself to remind him of his past purpose, hoping that the mastermind Zero will rise once again to finish what he started, in this thrilling conclusion to the series.
Code Geass: Lelouch of the Rebellion R2 has finished airing and it has 25 Episodes. It is also Known as: Code Geass: Hangyaku no Lelouch R2, コードギアス 反逆のルルーシュ 続編, Code Geass: Hangyaku no Lelouch 2nd Season, Code Geass: Hangyaku no Lelouch Second Season
1. Code Geass: Lelouch of the Rebellion
On August 10th of the year 2010, the Holy Empire of Britannia began a campaign of conquest, its sights set on Japan. Operations were completed in one month thanks to Britannia's deployment of new mobile humanoid armor vehicles dubbed Knightmare Frames. Japan's rights and identity were stripped away, the once proud nation is now referred to as Area 11. Its citizens, Elevens, are forced to scratch out a living while the Britannian aristocracy lives comfortably within their settlements. Pockets of resistance appear throughout Area 11, working towards independence for Japan.
Lelouch, an exiled Imperial Prince of Britannia posing as a student, finds himself in the heart of the ongoing conflict for the island nation. Through a chance meeting with a mysterious girl named C.C., Lelouch gains his Geass, the power of the king. Now endowed with absolute dominance over any person, Lelouch may finally realize his goal of bringing down Britannia from within!
Code Geass: Lelouch of the Rebellion has finished airing and it has 25 Episodes. It is also Known as: Code Geass: Hangyaku no Lelouch, コードギアス 反逆のルルーシュ, Code Geass: Hangyaku no Lelouch
