Naruto

Twelve years before the events at the focus of the series, the Nine-Tailed Demon Fox attacked the ninja village Konohagakure. Powerful enough to raise tsunamis and flatten mountains with a swish of one of its tails, it raised chaos and slaughtered many people, until the leader of Konohagakure – the Fourth Hokage – sacrificed his own life to seal the demon inside Naruto when he was a newborn. The Fourth Hokage, who was celebrated as a hero for sealing the demon fox away, wanted Naruto to be respected in a similar light by being the containment vessel for the demon fox.
Konohagakure, however, shunned him, regarding Naruto as if he were the demon fox itself and mistreated him throughout most of his childhood. A decree made by the Third Hokage forbade anyone to discuss or mention the attack of the demon fox to anyone, even their own children. However, this did not stop them from treating him like an outcast and as a result he grew up an orphan without friends, family, or acknowledgment. He could not force people to befriend him, so he sought acknowledgment and attention the only way he knew – through pranks and mischief.
However, that soon changed after Naruto graduated from the Ninja Academy by using his Shadow Clone Technique, a technique from a forbidden scroll that he was tricked into stealing, to save his teacher, Iruka Umino, from the renegade ninja Mizuki. That encounter gave Naruto two insights: that he was the container of the demon fox, and that there was someone besides the Third Hokage who actually cared for and acknowledged him. His graduation from the academy opened a gateway to the events and people that would change and define his world, including his way of the ninja for the rest of his life.
The main story follows Naruto and his friends' personal growth and development as ninja, and emphasizes their interactions with each other and the influence of their backgrounds on their personalities. Naruto finds two friends and comrades in Sasuke Uchiha and Sakura Haruno, two fellow young ninja who are assigned with him to form a three-person team under an experienced sensei named Kakashi Hatake. Naruto also confides in other characters that he meets throughout the series as well. They learn new abilities, get to know each other and other villagers better, and experience a coming-of-age journey as Naruto dreams of becoming the Hokage of Konohagakure.
Throughout all of the Naruto plot, strong emphasis on character development changes the plot, with very few things happening because of chance. At first, emphasis is placed on Naruto, Sasuke, and Sakura, who are the members of Team 7. However, other characters are developed, such as Kakashi, Tsunade, and Jiraiya, as well as Naruto's peers in the other teams and villages. Several major villains come into play as well, the first being Zabuza Momochi, a missing-nin from Kirigakure, and his partner, Haku. Later, Orochimaru, an S-Class missing-nin at the top of Konoha's most wanted list, and his loyal right-hand man, Kabuto Yakushi, are introduced. During this same arc, three ninjas known as the Sand Siblings are introduced. These siblings are from Sunagakure and include Temari, Kankuro, and Gaara. Later still, a mysterious organization called Akatsuki begins to pursue Naruto for the Nine-Tailed Demon Fox that is sealed inside of


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CHRONO CRUSADE

Chrono Crusade is set in the height of the Roaring Twenties, where jazz is king, bootleg liquor flows freely, and the mob rules the streets. It is a time of prosperity, luxury and decadence, and the division between rich and poor grows even wider in the wake of the First World War. It is at such times of great change and upheaval that the dark things that lurk below the world of man can come to the surface. In the world of Chrono Crusade, a fictional organization known as the Order of Magdalene (or more specifically, the characters of Sister Rosette Christopher and her soul-bound demon partner, Chrono) exists to fight the demonic threats that appear with increasing regularity across America. Both Rosette and Chrono are revealed during the course of the story to be driven by a shadowy past, centered around a search for Rosette's lost brother, Joshua. Joshua is shown to have been taken from her by the sinner, Aion, a devil who shares a dark and bloody history with Chrono, and seeks nothing less than to overthrow Heaven and Earth.
The anime follows the manga through the first half, but it diverges halfway through, creating different courses of events and endings. The characterization of some the characters, including Rosette and Aion, and their roles in the story were changed in the adaptation of the manga. Much of the story is driven by the individual pasts of the main characters and the complex relationships between them.

Hack//Sign

.hack starts in a fictional 2005, introducing a computer virus called Pluto's Kiss as the cause of a massive Internet shutdown. The results are described as catastrophic: traffic lights shut down, planes collide in midair, and the United States' nuclear missiles are nearly launched. As a consequence, cyberspace is subjected to severe restrictions. The virus affects all operating systems except for one, Altimit OS, the only operating system immune to all computer viruses. Two years later free access to the networks recovers, bringing with it the release of The World: the first online game since Pluto's Kiss, developed for Altimit OS. The World is portrayed as a fantasy setting wherein player characters can be different classes, adventure by themselves to go searching through dungeons, or join with others and form parties; fight monsters and level up, collect new items and participate in special events. At the center of each server is a Root Town, which contain shops, a save point, and the Chaos Gate that players use to travel between servers in the game.
Harald Hoerwick is introduced as the creator of The World. He secretly designed the game as a virtual womb in order to create the ultimate artificial intelligence (AI), by receiving emotional and psychological data from the players. His motivation is revealed to be the death of Emma Wielant, a German poet whom he was in love with; the AI, who was named Aura, would serve as the "daughter" they never had. Harald left the gathering of the required data for Aura's development at the care of the core system of The World itself, an omnipresent AI called Morganna Mode Gone. Most of the events depicted in Project .hack revolve around the premise of Morganna attempting to stall the growth of Aura indefinitely, after realizing that she will lose her purpose once Aura is complete. This sets the background for the storyline of .hack//Sign, that takes place in early 2010.