When the Sirens, an alien force with an arsenal far surpassing the limits of current technology, suddenly appeared, a divided humanity stood in complete solidarity for the first time. Four countries—Eagle Union, Royal Navy, Sakura Empire, and Iron Blood—formed Azur Lane, paving the way for the improvement of modern warfare, which led to an initial victory against the common threat. However, this tenuous union was threatened by opposing ideals, dividing the alliance into two. Sakura Empire and Iron Blood broke away and formed the Red Axis, and humanity became fragmented once again. As a seasoned and experienced fighter, the Grey Ghost Enterprise shoulders Azur Lane's hope for ending the war. But behind her stoic persona hides a frail girl, afraid of the ocean. Even so, she continues to fight as she believes that it's the only purpose for her existence. Meanwhile, Javelin, Laffey, and Unicorn—three ships from the union—stumble upon Ayanami, a spy from the Red Axis. Strange as it may seem, they try to befriend her, but as enemies, their efforts are for naught. Still, they persevere in hopes of succeeding one day. Amidst the neverending conflict within humankind, the keys that could unite a fragmented race might exist: a soldier coming to terms with her mysterious personality and camaraderie between those with different ideals.

Cyress is a peaceful place. People are going about their lives. Two lovers embrace, a family throws a birthday party for their child, a group of people party at a local restaurant. But suddenly, their surroundings explode into smoke and flame. A group of terrorists has snuck through the planetary defenses and has begun an assault. Defenseless, there is little the people of Cyress can do. As the military scrambles to discover what happened, the terrorists manage to hijack seven PDP missiles, which are capable of destroying an entire planet. These terrorists, who call themselves Solomon can now hold entire planets hostage! They must not be stopped. (Source: Themanime)

At the Ministry of Science, fervent Professor Ochanomizu alongside his coworkers strive to reactivate Atom—the first robot with a human heart. Atom is the masterpiece of enigmatic Professor Umatarou Tenma, who built the android to replace his deceased son Tobio. However, while Tenma inexplicably shut down his brainchild and disappeared, Ochanomizu refuses to let such a major breakthrough in science go to waste. Despite having the appearance of a nine-year-old, Atom not only possesses incredible strength and intelligence, but he is also endowed with a remarkable conscience and compassion that rivals humans. Sadly, the mechanical boy soon faces rejection and learns that not everyone is as welcoming as Ochanomizu. Although automatons have integrated into society, they are accepted only as tools and even seen as an upcoming threat to mankind's dominion. Dreaming of a world where people and robots can prosper together, Atom dedicates his existence to protecting the lives of both and inspiring them to form genuine bonds.

Life seems simple for Koichi, a young student, until he learns that he is the reincarnation of an alien protector who crashed onto the mantle of responsibility asdefender of the Earth, Koichi/Babel teams up with a trio of super-powered alien companions to battle the the dark forces of an evil cult leader. The war to save humanity takes Babel from the deserts of southern Asia to the upper east side of Manhattan and ultimately to a final showdown with the master in a hidden base nestled in the Swiss Alps. The action is fast-paced and deadly. The fate of the world rests in the ability of this courageous youth to tame his latent psychic power and use it to defeat the enemies of mankind. (Source: AnimeNfo)