Lewis is a biologically 3D-printed member of an advance terraforming team preparing Planet X-10 for human colonization ahead of the main migrant vessel carrying humanity in cryosleep. His existence stems from brain scans and biometric data of his original human counterpart, still in cryosleep on the slower colony ship. This connection grants him inherited memories, particularly of a woman named Kate, symbolized by a butterfly pendant of significant emotional value. A critical malfunction during printing results in Lewis manifesting a severely deformed physical state featuring non-human traits like horns, claws, fangs, multiple eyes, and unnatural skin texture. Initially exhibiting feral, violent behavior, he is perceived as a threat by the crew. However, exposure to the butterfly pendant triggers latent memories of Kate, catalyzing his return to cognitive function and human-level awareness. This transformation enables communication and an eventual alliance with the crew, especially Nina, who argues for his personhood based on ethical guidelines granting printed beings equal rights. The misprinting, initially blamed on a solar flare, is later exposed as deliberate sabotage by Patty using a compact, unauthorized printer. Despite his physical degeneration and the crew's initial hostility, Lewis plays a pivotal role in uncovering Patty's plot to detonate an RA bomb and sabotage the terraforming. His actions directly contribute to the mission's success, including disarming the bomb and enabling the deployment of terraforming technology. Post-mission, Lewis survives long enough to witness the initial stages of Planet X-10's ecological transformation before succumbing to his physical degeneration. His final wish—for the original Lewis to reunite with Kate—is honored by Nina, who prints Kate's biometric data using the ship's systems. This ensures the original Lewis and Kate embrace on the terraformed planet upon the migrant vessel's arrival, fulfilling his legacy as a catalyst for humanity's rebirth despite his non-original and transient existence.