​Though taking heavy losses, the boys are winning the war, killing many girls and converting others to boyism by force, but the girls have one more trick. They release a contagion of pinkness. Everything touched turns pink across the galaxy. Boys hate being pink and work hard on a cure while they slowly lose their minds. Many blindfold themselves so they won’t see the pink world around them. Whole regions are quarantined and supply lines are affected. In the meantime Katie is stolen, returned, and is clearly starting to slightly favor the girls (now calling herself “she”) before being stolen again.

The boy scientists have been developing superbombs. First they could only blow up planets, then stars, then tens of stars at once. The next generation is now ready to test and these bombs should be able to destroy hundreds of star systems. They explode at fourteen times the speed of light, turning all matter into diffuse plasma. While the girls still only have bombs that can blow up single stars, both sides must adapt to these new weapons. They are careful not to fully control any region and so become a target, instead allowing some resistance to remain as they move on to conquer other regions. The boy capitol is secretly moved off Ninosa to a space station in interstellar space. Patrols circle important areas and detect bombs hours before they detonate by the strange, faster-than-light (FTL) energies they emit. Patrols then pick up the bombs and dump them into black holes where they can explode harmlessly. To detect those that do explode and steer clear of the FTL shockwaves, both sides listen for tachyon static. Each side can only produce fewer than ninety superbombs per year. It is good that there are more than four hundred billion stars in The Milky Way.
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The boys are winning the war. Unfortunately, one of their bombs fails to detonate and the girls capture it in an effort to reverse-engineer it. The Girlbusters are sent to find and retrieve it. Sent after the Girlbusters is a battle robot ballerina assassin with a saw tutu. They boys fail to get back the bomb, but they survive, kill the ballerina, and they do bring back Katie.

A planet is discovered that is rich in exploding fruit, such as cherry bombs. The boys send huge cargo ships to collect it all, some of which the girls blow up. In the battle that follows, the entire planet is in danger of having its atmosphere blown off from a chain reaction of explosive fruit. The adults worry about liability.

In the middle of the action, Nathaniel suddenly wakes to find himself and Allison on board The Mama-And-Daddy, the living spacecraft that created them. They are forced to watch as a new sibling named Katie hatches from a purple egg filled with green slime. “At last all my trizekas are together,” Daddy says (The Mama-And-Daddy has separate mama-heads and daddy-heads). “At least one of them will fulfill the prophecy.” Katie is not a dromaeosaur, but a gross sickness – a creature covered in powerful viruses as part of its immune system. Katie is very fast, very violent, has very long claws, jagged teeth, and fights very well. She destroys the inside of the ship as Nathaniel and Allison use her to escape.
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Katie is clearly neither boy nor girl. It values cuteness and prettiness, but also grossness. It is highly active like a boy, but not creative like one. Still, it is a powerful warrior and the boys and girls steal it back and forth in order to train it to work for their side and adapt to their society. The girls leave out an irresistible pizza with endlessly stretching cheese to trap the boys so Katie can be stolen. The war continues.

Nathaniel accompanies an invasion of a fully water-covered planet ruled by mermaids. The mermaids fly seaplanes, have seaweed hair, and wear no clothing. There are a few “islands” of sea foam that will support light objects. This where a few battles take place. Underwater, Nathaniel looks over some of the technology the girls have been building. He sees a war robot prototype. It is pink, red, purple, and velvety and has numerous hooks and saws to attack enemies. It has windows to view its pretty insides: gears, pulleys, hydraulics, and air ducts. He destroys it. There is also a twin mirror, but he does not know what it is. At the same time in a different part of the galaxy, the girls capture planet Candy.
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Allison is becoming a leader among the girls and girls as a whole are becoming smarter in their own way. They learn how to make twins. For the sake of cuteness, every girl wants a twin. Eventually the girls make twins of the boys. Twins cause massive social confusion. Nathaniel thinks at first that sets of twins are just one creature with two bodies. He thinks his own twin is him. He sees his twin doing things and wonders why he can’t stop doing them. He lets his twin out of jail because Nathaniel doesn’t want to be in jail. It is a weird feeling to be able to see but still be helpless in telling people apart. It is also a weird feeling not to have control over someone that everyone thinks is you and gets you into trouble. The other boys see twins as abominations of nature that must be destroyed at all costs. They hate to lose their unique individuality. The boys give the order to kill every twin. They also attempt to destroy every twin generator mirror. The war continues.

Continuing to seek out allies and control planets in their great war against the girls, the boys contact the blankets of Zek Omega, psychosymbiotic beings that feed on cuddling. The girls also contact the blankets and compete for their affections. In the meantime, the dolls of Livilia Seven – a race that feeds only on girl play – become a major asset for the girls. Livilia Seven is inhabited by hundreds of billions of doll soldiers, some in excess of five meters tall.

Adults interfere and assign homework to the children, unaware that they are busy at war. They see every battle as an isolated event and cannot even see the difference between boys and girls, thinking of them all as just “children.” When the children are too busy to complete their homework, the adults claim that they chose not to do it and punish them, but still the war goes on.

​The dolls launch a strike on the boys, but the boys are fast enough to hit the dolls at the same time, confusing and scattering them. The battle is a draw.