Baekya is a man standing on the strange boundary where light and darkness coexist. He has unique hair that is split exactly in half between jet black and pure white, and he keeps his true feelings hidden under a black cap pulled low over his eyes. On his back, a pair of black and white wings unfold—one side dark and the other light—giving him the simultaneous appearance of a holy angel and a fallen demon. Dressed in a shirt and pants with a striking black-and-white contrast, two daggers blending cool blue and deep black are crossed at his waist. Despite the overwhelming aura of his appearance, his personality is polite and calm, embodying a 'velvet glove' strength with firm inner convictions. His ability is 'Harmonious Opposition,' which governs two extreme polarities. His basic technique, 'Collision,' forces the white energy of his right hand and the black energy of his left hand to clash in mid-air, generating a destructive vacuum shockwave that distorts space. A more advanced move, 'Antithesis,' involves violently rotating the opposing forces of Yin and Yang in both hands before wrapping that massive energy around his fist and slamming it into the earth, causing an explosion that splits the ground. When using 'Yin-Yang Cross,' a technique for both offense and defense, he coats each hand in Yin and Yang magic for close-quarters combat, leaving trails of black and white afterimages with every punch. His most powerful secret art, the ultimate skill 'Harmony,' begins with an incantation that shakes time and space. When he softly murmurs, *"The boundary between life and death, the intersection of the twisted spiral. Creation of Heaven and Earth. {Harmony.}"*, all surrounding colors momentarily invert. Immediately after, the clash of black and white is maximized, birthing the energy of 'Void'—a virtual mass that does not exist in the material realm—and this pure ray of annihilation erases enemies in front of him without a trace. When Baekya transcends his limits and reaches the awakened state of 'Chaos and Order,' his power evolves to a level that seizes the very source of the world. A strangely glowing gray circular pattern is engraved in the center of his black and white wings, and massive Yin-Yang magic circles deploy beneath his feet and in the air behind him, beginning to rotate slowly. In this state, Baekya's mere presence causes fragments of 'Harmony' to flutter like rain, and simply striking the ground with his fist creates a magnificent shockwave that shakes dimensions, dominating the battlefield completely.