In Frozen Teardrop
SpoilerAt an unknown date, Milliardo and Noin marry and have twins, Naina and Milou. While Zechs leaves with Naina to travel Mars under a new alias, Noin stays behind with Milou. Her elder brother, Nix-Deuf Noinheim, is the President of a large Corporation and takes Milliardo's name as his own alias, under which he becomes the first President of Mars. When he is assassinated by an anti-Mars Federation rebel group, Noin and her children attend the funeral- notably not shedding any tears for the dead "Milliardo", with Zechs standing behind them.