Riki Naoe and his friends, the close-knit group known as the Little Busters, are enjoying their usual school days when they discover a strange game console. Before they can understand what is happening, the entire group is pulled into a digital world that seems to follow its own game-like rules. Once inside, they find an array of magical doors that serve as portals to different stages, each one demanding a specific challenge to clear. The team must work together to conquer these stages, racing through courses, battling opponents, and solving puzzles, all while navigating the unfamiliar landscape of this virtual realm. Along the way, the bonds between the members are tested and deepened as they encounter new characters and unravel the mysteries behind the world they have been trapped in. The story blends the everyday humor and camaraderie of the original cast with action, romance, and the surreal logic of a game world, creating an adventure that forces the Little Busters to rely on each other like never before.