Six
There is life on Shivirra besides us. I do not mean whatever collection of bacteria and extremophiles manage to eke out a living upon this charred planet's surface (side note: learn what kind of extremophiles live on the surface), but other sentience, other sapience. Doubtless the remnants of the war who lived somehow.
We discovered them when making use of Dust's glucose rations, going out further from our home than we've ever managed before. It is a mess of corrugated metals and dirt bricks, but it was remarkable none-the-less. Shivirrans are hardier than I have given them credit, which means I must re-evaluate quite a number of things. Void volunteered to stay the evening there observing from a nearby hill, with nothing but some spare rations, a dust cloak, and binoculars.
Fire, Dust, and I have returned to the bunker and are getting extra rations and weapons. Old hammers and boxing tools for the most part, but it should be enough. With luck there will be more resources than just dirt and metal to take back, but there's no way of knowing until we take it.
There's not enough resources left to recycle on this planet to sustain multiple civilizations - not anymore. If us Yagoshans intend on getting off this planet and grasp at our destiny, we will need to succeed here first. I am nervous, there are only four of us, and likely thirty or so of them, based on the size of the settlement anyways, and if they have firearms things could get rapidly out of hand. I have tried to impress upon my siblings the danger they represent, but without first-hand experience I fear they will underestimate them regardless.
Still, there is no way to be sure until we return with violence on our minds. Soon the Yagoshans shed the blood of another for the first time.