ARPEGGIO OF BLUE STEEL GN (2025)

"For fans of Attack on Titan, a near-future series where humanity's hope lies in creating a sentient superweapon: a girl able to transform into a deadly submarine. In the early 21st century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily devastate Earth's naval forces. Humanity is now on the verge of extinction, and the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early 21st century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily devastate Earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early 21st century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war - a mysterious I-401 submarine that can transform into a girl."

"In the early 21st century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early 21st century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early 21st century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early twenty-first century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early twenty-first century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early twenty-first century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew on the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"In the early twenty-first century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily devastate Earth's naval forces. Humanity is now on the verge of extinction. Stalwart Captain Chihaya Gunzou and his intrepid crew of the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"The popular science-fiction series of naval strategy and political drama continues! 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. 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 be 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. 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."

"In the early twenty-first century, the majority of Earth's landmass is submerged due to rising sea levels. Enter the Fleet of Fog, a host of sentient alien battleships of unknown origin who easily decimate earth's naval forces. Humanity is now on the verge of extinction. In the year 2039, the stalwart Captain Chihaya Gunzou and his intrepid crew of the Blue Steel fleet may be humanity's last chance to fight off the alien invaders. The Blue Steel fleet happens to contain a secret weapon that could turn the tide of war: a mysterious I-401 submarine that can transform into a girl."

"Seventeen years have passed since the Fleet of Fog - a mysterious, unmanned fleet of powerful vessels that appeared out of nowhere - took control of the oceans. 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. 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. 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."

"Gunzou might still be missing in action, but Iona is determined to make sure that his plan to smuggle a warhead across the Pacific Ocean goes ahead. If it's successful, it will give humanity a much needed win against the Fog. But in order for the plan to work, the I-401 will have to act as a decoy and go toe-to-toe against a dangerous enemy!"

"It's been seventeen long years since a mysterious, unmanned fleet of powerful vessels that appeared out of nowhere took control of the oceans. Now, a weapon powerful enough to damage the fleet'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 be 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. 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."

"The popular science fiction series of naval strategy and political drama continues! 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. 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 be 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. 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."

"Seventeen years ago the Fleet of Fog took control of the oceans, barring humanity from traveling between continents or islands. Now, a weapon powerful enough to damage the Fog's vessels has finally been invented. 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. 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."

"It's been seventeen long years since the Fleet of Fog took control of the oceans, barring humanity from traveling between continents or islands. 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 be produced. The submarine I-401, with its humanoid avatar, was once part of the Fleet of Fog, but has chosen to side with humanity. 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."

The National Maritime Institute of Technology's school festival is in full swing! Beneath the hustle and bustle, Takao and Atago face off against Kirishima and Haruna, who are trying to break in to Facility Number Four. Meanwhile, on Hashira Island,  Gunzou plots his escape!

It's been seventeen long years since the Fleet of Fog took control of the oceans, barring humanity from traveling between continents or islands. 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 be 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. 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.

It's been seventeen 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. 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 be produced. The submarine I-401, with its humanoid avatar-a "mental model" named Iona, who's taken the shape of a young girlo-was once part of the Fleet of Fog, but has chosen to side with humanity. 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.