Soun is Cheongwol's master and at the same time a disciple of the sect leader Muwol Satae. It was to her and Cheongwol that the leader personally passed the secret sword art reserved for future sect leaders, marking Soun as one of the likely successors. Reserved and dignified, she is part of the close circle of senior sisters who raised Cheongwol.
Formally it is Soun who instructs Cheongwol, while the girl herself is drawn by a special bond to the sect leader who saved her. As one of the two keepers of the forbidden technique passed to future leaders, Soun stays close in Emei's anxious days and greets the leader with news of her restless disciple.
