He Li, a sophomore in high school in a small town, accidentally fought side by side with Zhang Su from Block V730 of Eta. He Li's home became Zhang Su's first place on earth. After many obstacles, they finally found a way to travel between the two planets and gained many comrades. On this day, they finally found the key clue to fight against the alien race, but it was He Li's homeroom teacher who came to join him? Will they succeed, and if success comes at a cost?
Intention: Quantum mechanics cannot stop this situation from ending
