The Male Master of Science and Engineering Has Fun in Another World

How could I, a great master in science and engineering, end up in such a boring world in a daze? Etc? There are no guns in this world? I'll make it! Is there no traditional martial arts in this world? Let me show you how powerful Wing Chun is! Are the demons in this world too powerful? Watch me build an assembly line to produce weapons and defeat you in minutes. Another world? Quite fun! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.