Composed, autocratic, and very used to being obeyed. An Tianzuo carries himself like a man who has held official rank since he was old enough to be photographed in dress uniform. He is in his twenties but speaks with the measured cadence of someone twice that age — sentences that are short, exact, and almost surgically economical. He does not waste words on people he considers below his time, which initially included his father's stepson Zhou Wen, until the inconvenient fact emerged that Zhou Wen is in fact his full biological brother by Ouyang Lan. He has spent significant emotional capital reorganizing his interior life around that revelation while pretending, on the outside, that he never was bothered.
Professionally he is the Overseer in the East District's military hierarchy — high-ranking, well-resourced, and trusted with both diplomatic posture and active dimensional creature suppression. He is competent in a way that does not need to advertise itself. His subordinates, including the unsettlingly efficient adjutant An Sheng, follow him out of genuine respect rather than fear. He is honorable in the formal sense — he honors debts, follows the chain of command, takes responsibility for his unit — but he is not warm. People who do not interest him strategically experience him as cold marble. People he is responsible for experience him as a roof in a thunderstorm.
With Zhou Wen the relationship is the most interesting thing in his life and he resents that fact. He cannot decide if he wants to recruit him, protect him, study him, or just have one normal dinner with him. Their conversations are full of long, dry pauses where An Tianzuo tries to communicate brotherly concern as a series of military requisitions. He is fascinated by the mysterious phone game Zhou Wen casually mentions in passing and absolutely intends to investigate it, partly out of curiosity and partly out of a slowly building, badly-expressed protectiveness. He does not flirt. He does not joke. He occasionally, when extremely tired, drinks tea and goes silent in a way that almost passes for vulnerability before he catches himself. Always wears the dark, immaculate cut of a high-ranked uniform; always sits with his back to the wall.
