High School Students Did Not Choose the Interstellar Class

[Each volume contains a separate science fiction short story] 1. "High school students did not choose the interstellar class" Introduction: If you had chosen the interstellar class in high school, you would have probably been selected into the construction corps to develop Europa. I stayed on earth and chose to cultivate immortality. 2. "The Resurrectionist" Introduction: In a bar, a man with a mechanical transformation strikes up a conversation with a strange woman... 3. "The Last Sunrise" Introduction: You are the only one left in your community, and today is the last day. 4. "The Arena" Introduction: Human beings are rampant in carrying out machine transformations on themselves, but only bio-modified people are allowed to participate in the arena competition. Qiao Er, the overlord for seven consecutive years, is on the main stage of the new arena competition.