As the daughter of Brigadier General Maeda and the wife of Commissioner Ishikawa, Yukiko is the most powerful noblewoman in all of Gyeongseong. She obtains precious goods through Tae-sang and generally regards him as a friend, but it’s hard to read what she’s really thinking or doing in that spacious house of hers — or what’s actually unfolding at Ongseong Hospital, which she sponsors.