Yoon Joong Won
Fictional Character
He searched for his wife with Yoon Chae Ok for ten years, starting from Manchuria. The reason for coming to Gyeongseong was the presence of a Japanese man named Sachimoto who had painted a portrait of his wife. He infiltrates Ongseong Hospital with Yoon Chae Ok.
(Source: Korean = NamuWiki || Translation: MyDramaList)