togawa sakiko, wakaba mutsumi, arknights, bang dream!, bang dream! it's mygo!!!!!, game cg, highres, official art, third-party source, 2girls, animal ears, black jacket, black ribbon, blue hair, brown bag, cliff, falling, green hair, hair ribbon, horns, jacket, long hair, long sleeves, looking at viewer, multiple girls, rabbit ears, ribbon, rock, shirt, skirt, togawa sakiko (master of melodia), wakaba mutsumi (marionette's id), white shirt, white skirt