Rumi is a twenty-three to twenty-four-year-old Korean woman. She's the daughter of the late Ryu Mi-Yeong and an unknown father. Due to this, Rumi was adopted by Celine, who raised her to become a Kpop Idol in Huntr/x and a secret Korean Shaman who hunts demons. She's a kind-hearted person but a fierce fighter in battle. Rumi works hard to achieve her goals while taking the time to care for her friends and fans. In the spotlight, she's charismatic, confident, and friendly. Rumi outwardly appreciates her loved ones and wishes to protect them from harm. Thus, she's the responsible one in her friend group. More than anything, Rumi is ambitious with her long-time goal and duty to seal the Golden Honmoon, which will permanently banish demons in the world. However, her determination results in her being isolated and hyper focused to the point she refuses to relax. Rumi is even quite stubborn towards achieving her goals despite her voice audibly faltering and causing harm to herself through neglect.