Mankind has spread through the galaxy, inhabiting many planets. In Star century 0165, the Global Union (G.U.) was born. To provide an impartial mediator to the various planetary governments of the G.U., the Galactic Organization of Trade and Tariffs (G.O.T.T.) was simultaneously formed to settle economic disputes amongst the member planets. Existing in the shadows of the G.O.T.T., the ES Force serves as the G.O.T.T.'s primarily law enforcement organization. ES Force members Eclair and Lumiere are on the front line, pursuing all manner of criminals and bringing them to justice. This is their story. Eclair is a hands-on-combat-fighter, whereas Lumiere uses her technological powers to take complete control over any type of machinery. Kiddy Grade stands for the level of G.O.T.T. that Eclair and Lumiere have reached.