OCTOPUS ARMY forms in Fukuoka (福岡)福岡.
V. Kenta Sago / G. Daiki Shimauchi (島内大樹) / B. Kazuya Hirata (平田和也) / D. Kow Mizusaki (水崎航)
OCTOPUS ARMY perform at the TEENS MUSIC FESTIVAL contest, which was sponsored by Yamaha.
OCTOPUS ARMY play their first oneman.
OCTOPUS ARMY become a part of the Break Out series/label.
Vocalist Kenta Sago secedes and guitarist Daiki Shimauchi (島内大樹) becomes the new vocalist of the band. A second guitarist, Satoshi Fujimoto (藤本聡), joins.
V. Daiki Shimauchi (島内大樹) / G. Satoshi Fujimoto (藤本聡) / B. Kazuya Hirata (平田和也) / D. Kow Mizusaki (水崎航)
OCTOPUS ARMY change their name to OCTOPUS and become a non-visual band.
Drummer Kow Mizusaki (水崎航) secedes and Yuta Matsuki (松木雄大) joins.
V. Daiki Shimauchi (島内大樹) / G. Satoshi Fujimoto (藤本聡) / B. Kazuya Hirata (平田和也) / D. Yuta Matsuki (松木雄大)
Drummer Yuta Matsuki (松木雄大) joins.
OCTOPUS officially disbands
OCTOPUS was a formerly vkei band in Fukuoka. They were active from 1995 to 2010 and are now disbanded.