A killer speculative fiction debut. Kitasei rejuvenates the "what's gone wrong on the deep-space mission" genre by interspersing scenes from the characters' youth, as they vy to be among the internationally selected crew to colonize Planet X. The memories add depth to the current relationships on board, and ramp up tension on the ethical uncertainties involved in the mission, which has attracted plenty of earthly opposition from environmental, nationalist and men's rights groups. Overall a refreshing and upbeat thriller with a likeable protagonist who overcomes self-doubt and imposter syndrome. Seems appropriate for young adult audiences as well.