origonz, togawa sakiko, togawa sakiko (master of melodia), arknights, bang dream!, bang dream! it's mygo!!!!!, absurdres, highres, 1girl, black dress, black gloves, black horns, blue hair, closed mouth, curled horns, demon horns, demon tail, dress, feet out of frame, frilled dress, frills, gloves, hair ornament, horns, huge horns, long hair, looking at viewer, official alternate costume, simple background, single glove, skirt hold, solo, standing, tail, two side up, very long hair, white background, wrist wrap, yellow eyes