A complete reprint of Yokoyama's science fiction connected to "Mars'' A complete reprint of Mitsuteru Yokoyama's science fiction feature-length manga serialized in "Weekly Shonen Sunday'' (April 2, 1960 issue - April 21, 1960 issue). Set hundreds of years in the future, in an era when free space travel has become possible, "Space Gang'' depicts the battle between the Space Guard, which exists to protect the peace of the universe, and the Space Gang, which steals the cargo of spaceships. A science fiction feature-length manga consisting of two parts: "Volume'' and "The Last Day Volume,'' which depicts humanity's last day when the temperature on the ground suddenly rises to 200 degrees Celsius due to a solar abnormality. In "The Final Days,'' only a select group of people are able to escape using the Space Guard's rocket, and the people who become desperate and turn to fights and riots are reminiscent of the later "Mars.'' [Recommended information from the editor] All doors, including colored doors, will be reprinted in both the short stories of "Space Guard''.