The story takes place on the Hekiou-PIanet, where immigrants from the earth fight among themselves in a war between first-generation immigrants “First” and second-generation immigrants “second.” This sci-fi tells the story of MANA OGA and other female soldiers who have “NIEBASS,” the native creature of the planet, implanted in their wombs. The pregnant women are called “teleportation soldiers” and are an important military power with teleportation capabilities from the NIEBASS. The story of “pregnant soldiers” has a strong sense of reality.