An imperial spy working for the Chancellory, Ando has had several interactions with the party.
He was covered as a tax inspector in Daizhou, where his orders were to report anyone who crossed the wall and back to his superiors.
Recently, he's been reassigned to look into the southern threat.
He's chummy with Li Merit and respectfully courteous with Takanata.
In Noodles of Fu Manchu, his skilled machinations in the Si Fan Succession Mechanic led to his becoming the new Great and Honored Enemy of the Si Fan, a position which he inherits from his mentor. In gratitude (?) for our help in securing this glorious result, he bestowed his blessing upon the Cup of Five Virtues: "No matter what plots happen here, may the secrets of the proprietors always be safe".