She’s a gifted K-pop idol and the charismatic leader of the girl group HUNTR/X. While she and her bandmates secretly fight demons, Rumi harbors an even deeper secret—she’s half-demon, born to a human mother and a demon father, a truth she’s never revealed to the others. As HUNTR/X’s lead vocalist and frontwoman, Rumi juggles her public image with the hidden responsibility of defending humanity. Throughout the film, she struggles with her dual heritage – hiding the demonic markings on her body.