A messenger of the Heavens has arrived in Zhao Ge, which has been ruled by the Shang dynasty for generations. The current emperor, Zi Zhou, refuses to bow his head before the gods, and declares to the messenger that he will no longer accept the tyranny of the Heavens. The gods do not take this kindly; and soon, the emperor of a neighboring land, Wu Jifa, leads a crusade against the rebelling Shang. During the battle, the Shang forces are vastly overwhelmed, and just when the capital is inches away from being taken, Zhou joins the fight. Although he breaks through the enemy ranks and makes his way toward Jifa, out of nowhere a god falls from the sky, landing right before him, prepared to personally deal with the troublemaker.

Following the conclusion of the National Middle School Tennis Tournament, 12-year-old tennis prodigy Ryouma Echizen sets out to the United States in order to further improve his tennis skills. While finding his own way to shine in the sport, Ryouma investigates a perplexing development: the circumstances behind his father's retirement from professional tennis. Known as "Samurai Nanjiro," Ryouma's father Nanjiro is a legendary tennis player whose career abruptly ended after the US Open finals several years prior. Though Ryouma has studied the final match extensively, there are still many gaps in his understanding—gaps that he would only be able to fill by watching the match in person. As luck would have it, a supernatural phenomenon transports the young prodigy—and his unsuspecting classmate, Sakuno Ryuzaki—back in time to that very event. Although the events that occur before the game seem normal at first glance, the appearance of the mafia soon complicates the mystery behind the retirement. Despite the bad odds, Ryouma must do everything he can to unravel the circumstances and prevent his father's career from ending.

The year 20XX. Humans called "Concodes" and ultra-high-performance AI called "Codeman" team up as buddies to compete in the card battle game ZENOZARD. People are going wild with excitement at the world championships, THE ZENON. One day, Souta Azuma, an average high school student, is challenged to a battle by a mysterious woman, Eilietta Lash. She reveals that she’s a Codeman and that her intent is to team up with Souta and participate in THE ZENON. Souta reluctantly agrees. Souta and Eilietta’s first opponent turns out to be the super-famous player Shion Saionji, who attends Souta’s school, and her buddy, Ash Claude. (Source: Official YouTube)

Any network runs all over the world, and the development of the information network reaches its acme. In this age, there are two developed worlds; "the real world" and "wired", or the virtual network world. Soma Toru belongs to a hacking group, Steppen Wolf, which runs around the network world freely. They attack the database of the UN forces as their last work. During this attack, he loses Nonomura Yuya, his friend as well as the team leader. Toru is arrested by the army. In exchange for letting him free, he has to work for an anti-hacker organization, the first squad of the UN Security Force Information Administration Bureau. Working for them, he is looking for the person who killed his friend, while the other members also have their own reason to fight. The three-way fights of the terrorist group, the security enterprise, and the army, continue every day. The various events occurred during the fight seem to be independent of each other at the first glance, but they're converging on one event as if they were attracted by something. Based on the game by GIGA. (Source: ANN)