1girl, Tsushima Yoshiko, Love Live Sunshine, beautiful female demon king, majestic and terrifying demon lord, RPG boss style, ornate black and crimson demonic armor with cape, large demonic horns, massive demonic wings, glowing red eyes, long black hair,
sitting on a dark throne in a demon king's castle, raising one hand gathering dark magical energy, evil scheming grin, sinister confident smile, menacing and charismatic expression, plotting evil plans,
grand demon castle interior, dark throne room with glowing runes, dramatic red and purple lighting, dark fantasy atmosphere, epic cinematic lighting,
masterpiece, best quality, ultra detailed, sharp focus, beautiful face, intense eyes, anime style, high contrast, dramatic shadows
