Centuries ago, the land of China was full of magical spirits. Those who could utilize the power of spirits were called Exorcists. Their duty was to prevent the Great Diablo, a demon showed up once every millennium, from plaguing the world. In Han Dynasty, however, in a catastrophe known as The Oblivion, all magical spirits vanished overnight. Having lost their powers, Exorcists became a thing in the past. Later, during the incessant war between Qin and Jin kingdoms, the resentful spirits of those who died in vain became the nutrients triggering the revival of the Great Diablo. In order to stop the demon, Chen Xing, the last surviving Exorcist, starts a journey with "Lamp of the Heart", a magical artifact that lives in his soul. He is to travel to Xiangyang City to find Xiangshu, who is destinied to join him to expel the demon.

Generations have passed since the war with the Space Monsters started, and none remain who know how it began, with even records of those times being scarce. It is a lost cause, but humanity still fights against them, relying on the "Topless": a group of elite space pilots with special powers that allow them to use the Buster Machines—the last hope against the Space Monsters. Nono, a girl from a remote Martian town, has heard tales all her life of the legendary pilot "Nono-Riri," and wants nothing more than to leave her humble life behind and follow in the footsteps of her idol. Though she has no idea of the dangers that lie ahead, nothing will stop her from achieving her dream. While Nono is down on her luck, she chances upon the lonesome Topless pilot Lal'C Melk Mark, and decides to stake her entire future on following Lal'C, no matter the cost. [Written by MAL Rewrite]

Taking place after a three-year time skip, the series will follow Shindou Kurono, Kiba Shion, and Anjou Tokoha as the new protagonists of G. Kurono uses the never-before-seen clan Gear Chronicle, which brings together the destinies of these three toward an "impossible future, an impossible self signifying 'Generation.'" (Source: vanguardus.blogspot.com, edited)

In the game, the player takes the role of an unnamed former little senior league baseball ace who lost his or her baseball career after suffering an unspecified injury. The character moves to his or her grandmother's hometown and enrolls in the local high school, resolved never to enter the world of baseball again. When the character meets Tsubasa Arihara, he or she is persuaded to be the manager of the school's baseball team, and to take the team to the high school nationals at Koshien. (Source: ANN)