Trench-coated spy "D" has been monitoring A-ko and C-ko each morning and reporting back to a large spacecraft as it approaches Earth. The aliens' conclusion is that they have located a lost princess whom they have been looking for. The aliens finally reach Earth and begin an all-out attack against the Graviton military, which is outmatched by the alien technology. A-ko and B-ko's own fight continues across the big city even as the military and aliens do battle. C-ko is abducted in the middle of this confrontation by "D," who is revealed to be a member of the Lepton Kingdom of Alpha Cygni, an all-female race of aliens. C-ko is their princess.