Space-faring Fisher and Runaway Girl―― The two are a fateful community. 6000 years after humanity spread into space. On the outskirts of a gigantic gas planet, the Circlers living in city-type spaceships catch the dim fish (Besh) swimming in the atmosphere to survive. In a society where couples are mandated to fish, the fisherman Terra, who has been rejected time and again, encounters the mysterious runaway girl Diod. Together, they embark on a powerful foundational vessel (Pillar Boat) as an unusual female pair. With their contrasting physiques and personalities, the two achieve unexpected catches――. A new cosmic tale from the author of the Japan SF Award-winning work "Tenmei no Shirube"!