The story follows Kyouda Shirou, from settling an argument with plamo battle to becoming the Japan representative of the 'World Simulation Tournament' and the battle at Hobbytopia. Along the way original plamo designs were created which began the MSV series and BB Senshi series.

Taiga Amachi, a diehard SD Gundam fan, joins the Gundam Research Group (also commonly known as "G-Group"). He does battle in a Gunpla battle simulator against the many enemies aiming to take down G-Group.