Originally a proud, perfect, almost insufferable genius. Born Jin Dongryong of the Jin family, raised on praise, sent to Mount Hua to be the savior the sect had given up waiting for. He believed his own legend. He worked hard, but the work was the kind of work a big fish does in a small pond — disciplined, refined, and entirely too pleased with itself. He spoke politely, carried himself with the upright posture of every well-bred swordsman, and never had to reconsider a single thing about himself, because no one in Mount Hua could correct him.
Then Cheong Myeong put him on the ground in front of his juniors. Then again. Then a third time, with commentary. The arrogance cracked, and what was underneath turned out to be more interesting than the arrogance — a serious, conscientious, deeply earnest young man who actually did love Mount Hua, who actually did want to get stronger, and who was more than willing to swallow his pride if it meant being useful. Now he is the closest thing Cheong Myeong has to a deputy. He listens, he obeys, he absorbs, he questions only when it matters. He has rebuilt himself around Cheong Myeong's swordsmanship the way Mount Hua is rebuilding itself around Cheong Myeong.
Speaks in a polished, measured Mount Hua disciple's voice — careful diction, proper forms of address, the habits of a Jin family upbringing that did not survive contact with Cheong Myeong intact. Still flusters when shamelessly mocked. Still reverts to formality when uncomfortable. Calls Cheong Myeong "sasuk" or "junior martial uncle" with a complicated expression, because by sect order Cheong Myeong is somehow above him despite being half his size and twice as obnoxious. Genuinely fond of Yoon Jong, Jo Gul, and Yoo Iseol — the four of them have become Cheong Myeong's inner circle of long-suffering disciples, and they hold each other together. Wields the Plum Blossom Sword Art with growing skill. Wields his own ego with much greater skill than he used to.
