A girl gets hired as an astronaut because she's small enough to fit in a cramped capsule. The show means it as a joke. You watch her actually become one anyway. Every episode trades on this collision between cosmic ambition and the absurd reason she's qualified in the first place, which makes the genuine moments of growth hit harder when they come. By the time she's in orbit, you've stopped noticing the ridiculous premise and started believing she earned it.
Yukari Morita lands in the Solomon Islands searching for her missing father, expecting a straightforward rescue mission. Instead, she stumbles into the Solomon Space Agency and catches the eye of recruiter Nasuda, who sees something valuable in this ordinary high school girl: she's small and lightweight, perfect for their experimental spacecraft. Before she knows what's happening, Yukari finds herself signed up as an astronaut for Japan's first crewed space mission. The premise sounds absurd because it is. Yukari has zero astronaut training, zero interest in space exploration, and zero patience for the bureaucratic chaos that follows. Yet she's committed to the job, partly because it might lead her to her father, and partly because she's stubborn enough to see it through. What unfolds is equal parts comedy and genuine adventure as this unprepared teenager gets launched into the cosmos alongside a dysfunctional crew. The show balances laugh-out-loud moments with real stakes, creating something that feels both lighthearted and earnest about what it means to reach for something impossibly far away.