Nadia: Secret Of Blue Water - Recommendations

• Vol: 2; Ch: 17
• 2000 - 2002

Nagisa has just recently transformed from being a human to a mermaid and is easing into the transition of living in the ocean. But when she crashes into a research submarine, she loses her memory and is brought on board the Sogei. It turns out that her love interest from when she was still human, Osanai, is on board and he tries to keep his past with Nagisa a secret from everyone else. Her mermaid friend, Tsunami, goes on a rescue mission to find Nagisa and warn her that since she just transformed into a mermaid, if she doesn’t speak for an hour, she turns back into a human and her life expectancy will dramatically drop!

• Vol: 2
• 1964 - 1965

In the future the world is taken over by the Ocean Empire. The Earth's only hope lies with the Super 99, a submarine designed by Dr. Juzou Oki.The story follows Susumu Oki, the chief mechanic of the SS-99 and the adventures he and the other crew members take on the SS-99 to save Earth.

• Vol: 1
• 2005 - 2006

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?

• Vol: 1; Ch: 8
• 1996

• Vol: 3
• 1967

The scientist who flooded the world of the future and created a mutant species in the images of animals is looking to finish what he started, and the crew of Blue Submarine No. 6 must stop him at all costs. But first, they must try to recruit the best sub pilot that ever lived: Tetsu Hayami.

• Vol: 1; Ch: 5
• 2016

"You should be thankful that I'm using you as my sex toy." My Instructor is going to force me to engage in pleasure with him in our submarine…

• Vol: 25+; Ch: 155+
• 2009 - ?

It's been seventeen long years since the Fleet of Fog―a mysterious, unmanned fleet of powerful vessels that appeared out of nowhere―took control of the oceans, barring humanity from traveling between continents or islands. During those years, people the world over have dreamed of a revolt that would let them take back the seas, but there's been no hope―until now. A weapon powerful enough to damage the Fog's vessels has finally been invented, and there's just one way of getting the critical information and prototypes from Japan to America, where the weapon can produced! The submarine I-401, with its humanoid avatar―a "mental model" named Iona, who's taken the shape of a young girl―was once part of the Fleet of Fog, but has chosen to side with humanity. Now captained by Chihaya Gunzo and his crew, the I-401 is the only ship under human control that can move freely through the seas. But she answers only to her captain, and he answers to no one.

• Vol: 4
• 2008

Ponyo is a goldfish who lives in the sea, and has an over-protective magician for a father. Soon Ponyo runs away from home and is rescued by a five-year-old boy named Sosuke. As she wants nothing more than to understand what it's like to be a human being, Ponyo uses magic to transform into a human girl, and the two begin to form a special bond. However, this magic results in drastic consequences, and one final test stands in Ponyo's way before she can truly be human. Can Ponyo fulfill her dream, or is she destined to return to the sea?

• Vol: 1
• 2016

The story follows Marlin, a clown fish, who is highly overprotective of his son, Nemo. When Nemo gets caught by a diver and ends up in a dentist’s fish tank, Marlin stops at nothing to find him and gets a little help along the way from a blue tang named Dory.

• Vol: 1; Ch: 6
• 2009

Based on the novel Moby Dick by Herman Melville.