FMA - Family: Brother Found
While Ling had expected to run into Mei Chang during their search for a Philosopher's Stone, what he didn't expect was to run into their older brother.
He never expected to learn that Roy Mustang, the Flame Alchemist, the "Hero of Ishval", was one of the many princes of Xing, after a lot of digging. The "lost one", the servants had often spoken in low voices during his youth - a failed assassination attempt during a party and Huolong Yao had vanished in the confusion. The more superstitious whispered "kamikakushi" - spirited-away, given his sudden disappearance. In reality, a faithful guard had smuggled him out west.
When Ling confronted Mustang about his heritage some months after the Promised Day, the older man simply shook his head.
"As appealing as returning to Xing sounds, my loyalties and heart lies with Amestris."
"Why?" Childish demanding, almost as bad as Mei, when they were much younger.
A soft smile. "I might not have been born in this country, but it is this country