In 2075, spaceflight has become both frontier exploration and ordinary labor. Hachimaki, Fee, and Yuri work aboard the debris-collection ship Toy Box, clearing dangerous human-made junk from Earth orbit while carrying ambitions and losses that reach far beyond the job. Their everyday work unfolds against a future of lunar settlements, Mars travel, and preparations for the first crewed mission to Jupiter, asking what exploration means once space becomes part of normal human life.