Rumi

Story For a long time, demons have attacked humans and stolen their souls to feed the Demon King Gwi-Ma. Three women rose as demon hunters, defeating the demons by using their singing voices to create a barrier called the Honmoon to seal them out of the human world. This legacy was passed down through generations who used their singing voices to maintain the Honmoon. Rumi's mother, Miyeong, was a member of the Starlight Sisters — a now-disbanded K-Pop group and the previous generation of demon hunters. She had conceived Rumi with a demon, and died shortly after Rumi was born. Celine, another member of the Starlight Sisters and Miyeong's friend, made a promise to preserve all that's left of her, which meant raising Rumi. From a young age, Rumi was taught to hide her demonic heritage, stating that when Rumi grows up to be a demon hunter and conjures the golden Honmoon, her demonic markings (patterns) will disappear. She is a half-demon human who is the leader of the K-pop group Huntrix, comprising herself, Mira, and Zoey. They take secret identities as demon hunters to protect the souls of the human world from demons.