The story is set in London and follows Katrielle as she solves mysteries with her talking dog Sherl.

Inspired by a small-statured pro volleyball player, Shouyou Hinata creates a volleyball team in his last year of middle school. Unfortunately the team is matched up against the "King of the Court" Tobio Kageyama's team in their first tournament and inevitably lose. After the crushing defeat, Hinata vows to surpass Kageyama. After entering high school, Hinata joins the volleyball team only to find that Tobio has also joined.

Inspired by a small-statured pro volleyball player, Shouyou Hinata creates a volleyball team in his last year of middle school. Unfortunately the team is matched up against the "King of the Court" Tobio Kageyama's team in their first tournament and inevitably lose. After the crushing defeat, Hinata vows to surpass Kageyama. After entering high school, Hinata joins the volleyball team only to find that Tobio has also joined.

The balance of the worlds is maintained by heroes. Suddenly, a red-hot meteor falls upon one of these worlds, called Neo World. An amnesiac youth named Wukong Impulse Gundam appears at the point where it landed. The chaos that starts with this incident spreads through the other worlds, one after another. At the same time, Zhuge Liang Freedom Gundam learns via astrology of an impending disaster. He and his sworn friend Liu Bei Unicorn Gundam take action to save the worlds from this crisis, and begin a journey along with Wukong. What will Wukong Impulse Gundam think as he meets the heroes of each world? Will this youth bring about peace or catastrophe? Now begins a new story of heroes!