Rumi Kang (Korean: 강루미, RR: Kang Rumi) is the main protagonist of KPop Demon Hunters. She is the leader and lead singer of HUNTR/X, a female K-pop group that also operates as a trio of demon hunters.

Rumi is the daughter of the late Mi-yeong Ryu, a former demon hunter, and a demon father. She was raised by Celine, a member of the Sunlight Sisters, who taught her from childhood to hide her demonic heritage and that, by fulfilling her purpose to seal the Golden Honmoon, the marks would disappear.

Throughout the movie, Rumi struggles with her dual nature, hiding her marks and fearing rejection both from her team members and her fans.

Playing with dolls contributes to the development of creativity, empathy, and social skills, whether playing alone or with others. This particular doll is speechless, giving more room for imagination to grow.