Full-body portrait of “Rumi”, a fierce K-pop demon hunter idol, on stage during a high-energy performance. She has long, flowing silver-pink hair, sharp expressive eyes, and a powerful stage presence. Wearing a stylish, futuristic K-pop battle outfit with glowing accents, holding a microphone shaped like a magical staff. Her pose is dynamic and commanding, like a leader in mid-performance. In the style of Kim Gwang-hyun’s manga 『Freezing』 — bold clear line art, sleek stylization, vibrant color palette, strong lighting contrast, and intense facial expression.