Gardneris a 16-year-old boy born on Mars. His mother Sarahis an astronaut. Back then, a rich man who loves space, Nathanielopened a Mars immigration base. Gardner's mother happened to give birth to him on Mars and died because of it. After that, Gardner stayed on Mars and grew up.
Gardner has been trying to contact the people on earth, once, he found a young Tulsaon the earth . At this time, Kendra Wyndham, the astronaut responsible for taking care of Gardner, proposed to take him to Earth. Nathaniel, the founder of the Mars Base, agreed, but he insisted that Gardner keep his identity secret and not let the public know his identity, and arranged for a doctor to conduct a detailed and thorough examination on him to prevent him from becoming uncomfortable after arriving on Earth from Mars. Physical problems due to gravity
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