You're watching a show that treats "all-female military crew on a sci-fi warship" as a setup for actual character dynamics, not a checklist. The comedy lands because these women have friction with each other that matters, and the romance breathes because it's built on real competence and respect, not just proximity. A single engineer walking onto a ship full of strangers who don't trust him yet is a premise that could collapse into wish fulfillment in seconds, except this show actually makes you believe the crew would resent him first.
In the near future, a permanent super cyclone called the Grand Roar forms in the Western Pacific, reshaping the climate and flooding much of the world. Fifty years later, sea routes matter again, but pirates prey on shipping, so companies hire armed escort cruisers for protection. Systems engineer Hyousuke Nagimiya is commissioned to upgrade the Pascal Magi, a cruiser crewed entirely by women under Captain Misaki Nanaha. The crew works to show their critics that they are more than a mere 'Alice Brand'. Meanwhile, a larger global conspiracy appears to be at work behind the scenes, seeking to exploit the new world order. The show mixes comedy, romance and science fiction.