Taking place in a universe that runs parallel to other storylines, it is the summer of 2010 when a peculiar scientist from the suburbs invented an all-encompassing virtual reality game that quickly took society by storm. Dubbed "Brave Duel," the game involved motion detection and teamwork in a simulated card game. Follow the tale of a young girl as she crosses paths with various opponents, competes against them, and develops as a player. The adventure is about to commence as the summer season approaches!