Tide-Line Blue Special - Recommendations

If you're looking for manga similar to Tide-Line Blue Special, you might like these titles.

Wadatsumi

Wadatsumi

In a post-apocalyptic world covered with water, Wadatsumi, a person who lives in what appears to be the last piece of land, finds a mysterious girl dragged by the waves of the sea. Where does she come from? Are there other lands in this world?

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Tide-Line Blue

Tide-Line Blue

Fourteen years ago, an environmental disaster known as the "Hammer of Eden"” devastated the planet – taking with it six billion lives, and submerging 90% of the world underwater. In the present, the remaining countries have formed a new United Nations in hopes of peace. Gould, a submarine captain, wishes to use military force to obtain this goal, while Aoi, the secretary general of the UN, believes in the power of diplomacy. In this world, Keel and Teen are twin siblings who, through a series of events, travel separately with Gould and Aoi. Together, they seek to answer the same question: is war the only way to attain peace, or can people learn to set aside their differences and negotiate?

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Central City

Central City

Earth after World War II. Rebuilding after the destruction has given rise to various vices. Disposers roam the cities cloaked in shadow and mystery. Kaede is a Disposer of SA rank, the highest level a disposer can reach. But he has to be in Central City, he must find the one who murdered his father...at any cost.

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DEEP (Yasuo OOTAGAKI)

DEEP (Yasuo OOTAGAKI)

Retired deep-sea diver Albert goes on one final job to recover a unique, once in a lifetime treasure, which is said to be inside the safe of a U-Boat, 620 meters under sea. Together with his old team, the treasure hunters known as DEEP, the mission to recover the safe begins...?

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H2O Image

H2O Image

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Coppelion Site Story

Coppelion Site Story

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Salacia

Salacia

In 2071, north pole ice have melted and the land has been submerged. Humanity survived but it's divided into two species: the true humans, those who live in underwater cities, and the Dugons, those who chose to undergo genetic modification to live in the sea. Both species go to war to survive as long as the Dugons consider the humans good to eat. To defend against the Dugons, the city of Mari Ramelle builds a new kind of weapon, the mermaid robot, Salacia. Because of the small size of the the pilot cabin, the robot is piloted by a girl and a boy, both 13 years old: Marin Yuuki and Ushio Mizushiro. The fight for survival is hard, and the city has to build more mermaid robots.

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Standard Blue

Standard Blue

The year is 2024. With the world's population continuously rising, man has looked to the sea for increased food supply and energy resources. Nirai Island - also known as Standard Blue - is the largest artificial island in the world. Near its waters the Ushio Sea Service operates, finding anything from lost pets to salvage quickly and accurately - for a price. Its crew is led by the elderly Taizou and a band of seafaring misfits, plus one new addition: Shiki, Taizou's granddaughter. She has run away from home to help cope with a personal tragedy four years ago, and slowly but surely gets in touch with the sea. Alongside the crew of the Ushio Sea Service, Shiki helps rescue dolphins and save stranded people in distress, but she soon will face her most difficult and dangerous challenge yet...

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Gargantia on the Verdurous Planet

Gargantia on the Verdurous Planet

In the distant future, the human race is on the brink of destruction. Mankind, which now drifts in space aboard a massive, technologically-advanced base known as Avalon, is poised to launch one final, desperate attack against its enemy, the alien race Hideauze. It’s during this battle that Ledo, a mecha pilot, is thrown into a wormhole and sent to an unfamiliar place: Earth, the lost birthplace of humanity said to have turned to ice long ago. Having been saved by the inhabitants of the Gargantia, a fleet of ships that traverses the now-flooded planet, Ledo must come to terms with these primitive people with their backwards language and technology, learn to communicate, and try to find a way back home to his place in the sky.

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Leviathan (Gyeong-tak LEE)

Leviathan (Gyeong-tak LEE)

Over a century ago a comet struck the Earth, causing the sea level to rise and engulf the continents one by one. What's left of mankind now lives aboard ships that float the endless ocean, and beneath the surface, giant, bloodthirsty giant sea creatures lurk, waiting to devour the flesh of divers that breach the surface. Bota and Lita are two young siblings that live aboard a scavenger vessel with their father, who tells the pair about legendary harpoonists who protected humanity from the monsters. And when tragedy strikes, one such harpoonist, Kana, takes them under her wing - but nothing can prepare Bota and Lita for the horrors that are to come...

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