Special Airborne Armor Unit-1, Sevenger. A masterpiece that has gone through many battles. STORAGE member Yuka Ohta was ordered to submit an enhancement proposal for Sevenger. Will Yuka be able to come up with a good idea by watching the past battle records?

A mysterious robot suddenly appears in front of Yuka. It seems there are datas of various dimensions inside it. Chasing the robot, came a mysterious young man. He introduced himself as...

In order to obtain the newly genetrated exquisite item, Ignis, a treasure hunter who travels the universe, asked a favor. To acheived that, it seems Yuka must do something...