Tianji System: I Am Engaged in Development in the Prehistoric World

System, fantasy, imagination, science and technology, cool articles Gou Sheng traveled through time The good news is: the master is Hongjun, the bad news is: I am a congenital waste body. Since he cannot cultivate immortality, the protagonist plays with technology in the ancient world with the help of the system. . . While others are cultivating immortality, I am mechanizing farming; I was vaccinated when others poisoned me; When others hit me, I use electricity; When others are in trouble, I sell lightning rods; Others soar, I have a hot air balloon, I have a diving bottle when others avoid water. . . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.