特空機１号セブンガー。
数々の戦いをくぐり抜けてきた傑作機。
ストレイジのオオタユカ隊員はその強化を命じられてしまう。
果たして過去の戦闘記録はユカ隊員に良きアイデアをもたらしてくれるのだろうか。
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?
