A crisis is approaching, and meanwhile, the higher-ups are plotting behind everybody's backs. Plans of a massive comet interception mission involving both Comet Blasters and Meteor Sweepers' MiG-31MS and TSR-2MS are being prepared. But will the plan succeed?

Is it tears of sorrow or laughter and joy that await the team of four beauties from Shimojijima Base?

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Prequel: Stratos 4 Advance