This is the full text of the English translation of “Martian Child” by Kim Seong Joong, along with the accompanying illustration, published in the Bookmark section of KLN Vol. 60. The first-person protagonist is a lab animal with webbed hands, who becomes the sole survivor on a space expedition to Mars. She meets the ghost of Laika, a dog that died in a space mission, and an abandoned exploration robot. The short story is characterized by a distinctively affectionate gaze toward those that are sacrificed and forgotten in the process of the expansion and exploitation of civilization symbolized by space exploration.