Single from DEMPA GUMI.inc. "W.W.D" is written and composed by Kenichi Maeyamada. "Fuyu e to Hashiridasuo!" is created by Kasekisaida and Shinya Kogure. This edition includes a bonus DVD with a music video of "W.W.D," its making-of, and original video content A (subject to change). *The DVD disc is encoded for region 2 (Japan, Europe, and Middle East), and no subtitles are included.