togawa sakiko, togawa sakiko (master of melodia), arknights, bang dream!, bang dream! it's mygo!!!!!, highres, 1girl, black dress, black gloves, black horns, black ribbon, blue flower, blue hair, curled horns, detached collar, dress, floating hair, flower, frilled dress, frills, gloves, hair ribbon, hand on own chest, horns, long hair, musical note, open mouth, ribbon, sheet music, sidelocks, single glove, skirt hold, solo, standing, suan jiao, two side up, wrist cuffs, yellow eyes