She is a Disassembly drone with neon-yellow oval-shaped eyes. She has long hair consisting of grey, with a little black and white, some of which is tied into two metal oni horns on the top of her head. SD-I-B-U has a style of clothing that is very unlike what one would think a Light Music Club member would wear. She wears a sailor uniform with a black pleated skirt and ripped thigh highs (one black and one white) and has three piercings under her lip.