Midii Une is no relation to Lady Une (or, at least, not any relationship that the manga indicates). This young girl appears in Trowa's Episode Zero. She's a good actress and pretends to be a saintly child, giving Trowa a crucifix so God will protect him in his missions as a freelance mobile suit terrorist fighter. She's always playing on a small handheld game, but later it's revealed that she was working against Trowa and his fellow comrades' mission - the handheld was a communicator, as was the crucifix Trowa wore into battle. Her reasons for sabatoging their mission for the enemy's benefit was to feed her father and her three younger brothers. Trowa was the only one left alive, and he leaves her alone at the end of the Episode after giving her the crucifix back.
