Chang Ang

Japanese name:

長庵

Chang Ang is a Fahren cabinet member and current ruler of the realm until Aska comes of age. He puts a lot of pressure on Aska to become a good ruler, which causes her to think of him as a "preachy old man"; in the English version, a "bigmouth." In the manga Chang Ang assists Lady Aska in her invasion of Cephiro. Throughout the second story arc, he constantly loses his temper with her because of her rash actions and silly decisions.

Chang Ang also makes an appearance in Tsubasa in the Country of Ōtō.

Wikipedia