Black Technology: I Upgraded the First-Level Civilization to the Full Level

Su Chen was reborn in a parallel world and was bound to a black technology system. In three years, the world will fall into a huge crisis? Successfully developed photolithography machine! Successfully developed an anti-gravity fighter! Successfully developed an electromagnetic rifle! Successfully developed a giant electromagnetic gun! Successfully developed new energy! Successfully developed an antidote to paraquat! ! Successfully developed a particle beam weapon! Beautiful Country: "The lion of the east has awakened?" Sakurajima Country: "This is a giant dragon!!" Alien: "Where is the vanguard team? You call this a first-level civilization!??" Facing various interviews, Su Chen felt a little helpless. "Isn't it just that there are hundreds of millions of bits of black technology? What are you making such a fuss about?" "I just want to save the world?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.