Communication has been lost from the astronauts who landed on Mars for the first time in human history. 4000 people gathered for the selection test to risk their lives for the rescuing mission. Among those who challenge the unknown is the son of a legendary trucker, Mikawa Courage! A masterpiece depicting "universe" with the theme of "courage". --- - Published originally in 2000 (4 volumes), then in 2007, 2009, 2016.