Atsuko is a JinDo artist on Sel during the Late Era.
Atsuko is also referred to more formally as Atsuko of Jindo. He visits the Imperial Seat of the Rose Empire as a guest. He fell sick for three weeks and stays in a room in the Rose Palace.
Later, when Wan ShaiLu is imprisoned in a room on the floor below the one Atsuko had stayed in, she is guarded by one of the same men who guarded him. Shai uses Forgery to make the wall believe that Atsuko stayed in her room and had painted a mural on it, in order to decorate her room.