the galaxy, changed forever

Over time, something interesting seemed to happen while Nimrod prepared the legions and sent them out. His female primarchs seemed to regain their souls, parts of them anyway. The ones who still had living primarchs or destroyed souls couldn't get their entire essence back, so Nimrod resorted to having them grow into their Blank lives, replacing their missing soul characteristics with personality and an essence of their life put into practice, as Blanks. But for those who did die and had souls able to be put in, they got em, even Magni, who got the noble shard of Magnus hiding in the founding Grey Knight grandmaster.

With the introduction of these legions and their leadership, the Imperium became bolstered, their power swelled like a bear whose hibernation feature had evolved into a battle feature. However, along with their increase in the Imperium's power, these legions also brought reforms, ensuring that the Imperium protected the rights of Xenos and Mutants. Additionally, these legions worked to improve the state of living of these worlds they visited and conquered, bringing in Earth Caste Tau sent over as part of Nimrod's appeasement after transforming both Tau factions greatly. These Tau were instrumental in advocating for proper rights and better standards of living, working closely with the Mechanicus and Nimrod's true engineers. They did such actions against Guilliman's protests, since their intentions to help improve worlds by leaving small detachments were deemed as a waste of time and resources. Yet, they continued to do as they wanted, even performing grand feats through inter-legion cooperation, like taking away entire hive cities, lifting them into space where they can be towed or turned into ships, allowing these worlds to have less of a burden and giving these forces a greater Guardsmen ****, a necessity given that pressure continued to mount for faster conquests. At times, they did the drastic thing, which was to take all the poor people and mutants from the slums, underhives, and so on, putting them into Guardsmen regiments that followed them, since the Imperium was so against mutants and associated forces. Still, these conscription efforts greatly helped the Imperium recruit more forces and gave this legion the much-needed aid it often required. Not many wanted to work with their potentially heretical forces, so they had to wait till their forces were above Forge Worlds to strong-arm Imperials for supplies, or steal them from the battlefields.

Within less than a decade, their labour quickly bore fruit as these Imperial sectors visited by these legions quickly began to shape up, thanks to small detachments of female Space Marines and other forces under Nimrod acting to improve such lands.

As for their battle feats, the enemies against peace and prosperity were vanquished continuously, and these women outshone their male counterparts.

• The Goliaths used enormous weapons and stuff fit for dreadnoughts, covering for Primaris Marines and Space Marines as they flattened the land and enemies. Roosse met her sons while doing this, and although they were pretty against her existence, they tolerated her for the meantime, accepting that female Russ still had their lord's genetics, and so her geneseed was still viable. Her skin being constantly oiled, shiny, and mostly naked was a worrisome trait, but the Space Wolves decided to accept her geneseed, creating female Space Wolves and sometimes joining her on campaigns.
• The Changers' ability might seem like something needing to be kept under control, but it's surprisingly useful against enemies and for the legion. First and foremost, their legion is able to induct promising females AND males into the legion. Secondly, the understanding that they need to be cautious of this fluid infecting others has led them to slowly develop a Black Templars mentality, chanting litanies for focus and maintaining a sombre persona. Lastly, this legion knows how to weaponise this fluid, drenching their weapons in it or spilling their girl cum into water sources. Khorne's daemons infected with this liquid before dying or while alive will be permanently transformed into oozing, horny females with a wild sexual nature and a protective relationship style, fulfilling muscle mommy fetishes for the strong men or cute boys they take, keeping these daemons distracted and away from blood or battle. Corrupted Space Marines will regain most of their pre-corruption forms, usually exposing many weaknesses. The chaos of a feminised population makes it easy for their legion to conquer worlds. The female version of men often leads to drastically different proportions, making weapons and armour not fit. The uses of this liquid are endless, but they mostly fight like normal marines, keeping the same mental and physical statistics as their male Space Marine counterparts, using their ability when the situation arises. Because of all their traits and attributes, this legion has found the greatest success in Necron conflicts, transforming intelligent and mindless Necrons alike, driving their programming mad as they awaken or reawaken to human female personalities and interests. Also, the most key attribute being that they remain as various types of women, whether that be bimbo, tomboy, milf, etc, regardless of whether they're revived or not. The changes made by this legion are seemingly permanent, giving rank and file Necrons personality, and causing higher-ranked Necrons to become disorganised in battle while transforming to grow busty figures. There are even cases of Necron tomb worlds changing their previous doctrines of hate and xenophobia after being infected, choosing to instead use out their new pussies, breasts, mouths, and other enhanced features of their former organic lives, given a human touch and comprehensive detail. Sally doesn't wish to change these actions after Nimrod's teachings of racial equality, though Sally does get very savage on the battlefield, taking specially-trained units as her chosen warriors who can show a savage fury.
• The Pink Sisters (who're honestly looking more like Custodes than Space Marines) are graceful warriors with packed lives. Although newer recruits lived under the harsh regime of the Imperium, these sisters had the experience and thoughtfulness of mind to know when to speak up against injustice. They also have protective and doting mentalities, treating everyone else like children needing to be saved, risking their lives tactfully for this purpose. Dora understands, accepts, and believes in their philosophy, bringing mobile fortresses or joining her sisters on the fields of battle, giving them a degree of restrained freedom, allowing her to order them without stepping on their autonomy. Many find both Dora and the Pink Sisters unnerving or annoying as a result, but these ladies don't mind and, instead, choose to be beacons of positivity and light, taking along their original culture, customs, and stories.
• The Daughters of Magnus quickly got into many spats with the Thousand Sons and Magnus, but their stable horde of Psykers allowed them to outnumber the Thousand Sons in psychic power, focusing more on their minds as they outmanoeuvred and outplayed the Thousand Sons. Meanwhile, Magnus's grasp over this legion was weak; it was Magni who showed superior control and affinity over both legions, sons and daughters. Magni often fought Magnus psychically, relying on her daughters to boost her strength as she turned Thousand Sons to her side, since they saw their father's nobility returned in this female vessel.
• The Growers, led by Sunshine and Moonlight, using their abilities to their advantage, taking on adaptive tactics and changing roles where they easily switch positions, thanks to being able to gain the other's proportions, they moved into the role in their squad. These marines take stealth and teamwork to a whole other level, training to be even more adept in team combat, and using a special fighting style revolving around their power. These women can even fit through something as thin as a slip under the door, or fit into something as big as Tau mechs, provided one takes out everything inside. They are perfect tools for Sunshine and Moonlight's battle doctrines, which changed when they were paired together.
• The Mother Marines, led by Hera, have excellent leadership that genuinely cares for and wishes to aid both them and their children, since their foetuses aren't merely a part of their bodies, but children these ladies care about and wish to see be born as great people. No longer are the days when a secretly vain Horus desperately seeks approval, Hera, as a clone of Horus and one bearing additional genetic code (that basically makes her a descendant, rather than the original); Hera has worked on herself, deconstructing her memories when slain by Abaddon, and as she once led the legions. All this knowledge has made Hera an exceptional leader who refuses to sacrifice her warriors or their children, ensuring her legion gets its extensive stocks of sniper ammo, and insisting on breaks for her warriors. Many of these children born to this legion end up later joining their ranks or seeing Hera as a maternal figure. Truly, there could be no better fit, for Hera takes every life and lost soul with great heartache, especially the children, banning cherubs of any kind, or child labour. As for the war aspect, they are really good at it, getting high kill counts thanks to their extra-heavy sniper rounds that also grant them greater range.
• The Sisters of War are led by Guilly, making a cute situation where Guilly is treated like a little sister when outside of her armour, and when in armour, she doesn't exactly fit, requiring her arms and legs to momentarily fuse with Guilly while she fights in battle with robotic limbs. Meanwhile, her legion achieves countless successes, regularly competing with the Ultramarines, who view them as heretical fakes failing to live up to the legacy of 13. The Sisters of War and Guilly don't care about this much, though, keeping friendly faces as they rush into battles with precision, leaving no wasted movement or slow actions done by normal Astartes trying to aura farm. In other news, Guilly is a major helper for Guilliman, handling a significant amount of administrative paperwork that Guilliman later reviews. The reason why is in two simple pieces. Firstly, Guilliman's back is tired from doing this all on his own, and a clone of himself, no matter how different, is far more trustworthy than female clones of other primarchs, or the male counterparts of the traitor primarchs themselves. Secondly, Guilly's soul and body, though old, didn't adapt like the others in becoming Blanks, growing souls, or gaining the soul of said primarch/s. Instead, Guilly has been using her proximity to Guilliman to feel more like herself, changing her smoking habit to a lollipop habit, and growing something like a soul echo/outpost for Guilliman's soul.
• The Shark Girls were fairly well received by the Carcharodons, who saw the same origin of shark in these "Shark Girls." However, the Carcharodons were not prepared to accept a full legion of forces, and so they only took in a small number, leaving the rest to remain as a vast legion under Scira and Velvet. Though there was a bitter-sweet moment between the Carcharodons and Scira before departing, there wasn't much to it, and, from then on, the Shark Girls have been under these two female primarchs, living their fiercest lives as they treat the darkness like waters to swim through, using the grace of their weapons taught by Velvet.
• The Storm Knights & Blood Horns: Under the primarch trio, these two legions gave the three primarchs a lot to deal with. The Storm Knights were basically super Iron Hands from Night Lord stock, and the Blood Horns were made of Khorne's corruption, though they possessed unyielding martial control. Greece, Sasha, and Rome are great, somewhat confusing, but they work well together, and while Nimrod would never admit he put these three in control of two legions to ensure a corrupted seed wouldn't gain full control (he did), they both work well together and have factions in either legion. The issue of Chaos is ever-present, but the danger from these women is negligible, and although it's understandable why Nimrod took this action, it was a bit drastic. Still, they are some of the most effective trans-human soldiers in the galaxy, defying expectations and doing especially well against Chaos Space Marines.

As an added detail, each primarch continues the lineage of these legions, while still giving geneseed, by letting the geneseed of these legions transform their pure geneseed.