Mobile Suit Zeta Gundam: Day After Tomorrow - From Kai Shiden's Report
Shinta and Qum were brother and sister, and their father was set up and subsequently killed by the Titans in order to find someone responsible for the murder of Blex Forer and to cover up their own involvement in the assassination. Coincidentally Char meets with Hayato the morning after to discuss the death of Blex near a river where Shinta and Qum just happened to be selling water and when Hayato asks "...Did something happen with those kids!?" Char coldly replies that it was nothing and goes to leave, but as he does so he hears Lalah and replies "If that's what Lalah says…".
Mobile Suit Zeta Gundam
When Char Aznable returns from a trip to the Earth Federation capital in Dakar, he brings with him a pair of orphaned children, who remain aboard the Argama as mascots and comic relief. For the most part, Both Shinta and Qum are entrusted to the care of their babysitter Fa Yuiry and their pet robot Haro, but when they're really bored, they'll pester Kamille, Bright, or the kindly ships' doctor Hasan for additional entertainment.
Mobile Suit Gundam ZZ
During the First Neo Zeon War Shinta and Qum would be given the task of watching over Axis prisoner Chara Soon who was kept tied to Shinta with a rope leash. They were with captain Bright in the La Vie en Rose, in order for them not to get hurt in the battle in Side 3 they were not present during the last battle. She was last seen seeing off Judau Ashta and Roux Louka heading for Jupiter.