I Was Doing Scientific Research in the Underworld and Drove the Ghosts Crazy.

When powerful foreign enemies joined forces to blockade and sanction Kyushu for a hundred years, and the world's land became desertified, trying to enslave Kyushu, Qin Chuan traveled through time and directly succeeded to the throne as the new Prince of Hell! After learning about the current predicament in Kyushu, Qin Chuan immediately decided to lead the deceased seniors and work with them to 'develop photolithography machines', 'control nuclear fusion', and 'plant desert rice'... "Back then, we could use an abacus to create mushroom clouds in the desert!" "Today, it is easy to completely control controllable nuclear fusion technology!" "So what if it's a desert? I'm enjoying the cool air under the grass and dreaming of Kyushu!" As more and more veterans joined the R&D team, five major inventions were successfully developed in less than a month! And at this time. The foreign enemy who was ready to move finally showed his claws and began to attack Kyushu! But at this moment, Qin Chuan, with the hard work of his seniors, transformed into a dragon-shaped mecha and rushed out of the underworld and descended into the earth! When the 1mm lithography machine appears, when controllable nuclear fusion technology is announced, when the desert is full of rice flowers... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.