The setting takes place in the Japan-inspired Kingdom of Japone, where, around 450 years before the story starts, the Demon King Dragless rampaged through the lands until a young hero defeated and sealed him away. After centuries of slumber, Dragless is now showing signs of awakening, and it's now up to the 14-years old Daigo Raioh, descendant of the young hero, to defeat the monster once and for all. Meanwhile, other talented fighters will set out, some for reasons related to Dragless (like Terrific Forelock, the bodyguard and childhood friend of Princess Mirona, who's out to save her after she has been kidnapped by the Demon King), others not at all (like Misa Atago, who goes on a trip to ease the pain of her break-up with her boyfriend). In the end, all of them will learn about Dragless and realize how serious the situation is.
One Piece: Grand Battle! Rush, known in the U.S. as One Piece: Grand Battle! and in Europe as Shonen Jump's One Piece: Grand Battle!, is a fighting game made in Japan based on the anime and manga series One Piece. It is the fourth and final game in One Piece's Grand Battle series and the nineteenth One Piece video game released.
Every year, during the prestigious all-girls' school Ryouran Academy's culture festival, a fighting tournament is held, with representatives from each of the school's clubs duking it out to determine what the school's priorities for club funding will be for the next year. Naturally, the more athletically-inclined clubs tend to place higher than the culturally-inclined ones, with the Chemistry Club in particular suffering from a humiliating string of losses in the tournament prelims... Enter one Asuka Honda, scouted in middle school by the current Chemistry Club president and subjected to a year's worth of Training from Hell in order to be the Chemistry Club's secret weapon. Making it past the prelims, Asuka enters into the final tournament, where she and a host of girls all vying to improve their club's standings will face off.