The Mad Demon from Another World Eternal

An otaku who was rejected by girls and became autistic. An unexpected death. A random chance at rebirth. Why is my time travel plug-in such a waste! ! ! I have no choice but to stick to the plug-in I chose, no matter how difficult it is. Even if I only learned elementary magic. I also want to become a magician who can make nuclear bombs with my hands! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.