Fullmetal Alchemist: Brotherhood (2009)

S1E15 Envoy from the East

The Elric brothers find themselves in a tense confrontation with Ling Yao, along with his companions, Lan Fan and Fu, who have traveled from Xing in pursuit of the Philosopher's Stone. Although Ed is not fond of Ling Yao, the determined prince has no intention of departing without achieving his goal.