Rechan is eight-and-a-half months pregnant and must journey into the mountains to find Sang, her breath-sibling that she carved at sixteen. His breath is needed to give the baby life; without him, the baby will be stillborn. Although the war has ended, its remaining traces make the journey to where Rechan left Sang, eleven years ago, fraught with mishaps. She is uncertain if he will even be there when she gets to the plateaux. In the middle of the journey, the flyer’s motor gives out, and she and her companions must barter with a local herder to find a vehicle to continue on. As they wait for it to arrive from another village, they compensate for the borrowed vehicle by providing aid in the food preparations for a wedding. One of her companions, her niece’s breath-sibling, notices that Rechan is very close to entering into labor. Rechan remembers her trip into the mountains at sixteen. Angered at losing her pilot apprenticeship and her dreams due to the onslaught of war, she discretely carved her breath sibling for months from an enormous stone. Whereas others would carve their breath sibling with more humanistic features, she channels her anger towards the war and creates a spaceship. Sang, the ship, offers her escape to other planets, which she turns down (with a sense of regret, all these years later). All these years, Sang has remained in the mountains, hunting down rebel ships with the anger towards war Rechan imbued in him. Their journey resumes with the car, but the noise of the motor attracts rebel drones, so they abandon the vehicle quickly and continue on foot. Rechan’s contractions start, though she must continue through the pain to get to the destination. Then, the travelers catch sight of rebel flyers approaching them in a swarm, just as Rechan is incapacitated by a contraction. Sang appears and destroys the rebel ships, saving them. When Rechan sees Sang, she sees how he was never meant to be chained to the Earth, fighting against the rebel cause. She realizes the world has moved on past war, including her, and her desires no longer align with her sixteen year old self, while Sang has been left behind. She releases Sang, telling him he doesn’t belong in the mountains and should escape to other planets, to which he reiterates his offer to take her with him. She turns him down, and he promises to return—a promise Rechan knows will not be kept. Sang helps with Rechan's birth – which will be her first and her last as her breath-sibling will no longer be in her world.