In short, this book contains the following:
Ship girls crossing over, world invasion, defending Blue Star,
kidnapping humanoids, founding an independent nation, technological plunder,
planetary rescue, civilization extermination, world unification,
restructuring the world order...
P.S.
Commander: No matter what difficulties and challenges we face, humanity is a community with a shared destiny. We should set aside our prejudices, stand together, and press forward through the river of time.
Ship girls or humanoids: But here's the thing, Commander. We're not human...