I Transmigrated, So Why Do I Still Have to Do Research?

Other people transmigrate to another world and rely on extraordinary talent and a System to allocate their points. I transmigrate to another world and rely on controlled experiments and logical deduction. Later, I casually united the human tribes scattered across the wasteland and founded a magical dynasty spanning an entire continent. After that, I decided the gods were seriously interfering with my academic research, so I casually removed them from their thrones and took one for myself, so I could keep doing science. I thought that was the end of the story. Then, years later, I discovered that the magic I had once used to liberate humanity had become a shackle enslaving all living things, and the civilization I had built with my own hands had become a blood-soaked executioner steeped in darkness. I refuse to accept such a terrible ending! So I put on a secret identity and returned to this continent. I am the sage savior who travels the world and preaches equality; I am also the despotic tyrant who rules alone and oppresses every race. As long as I gather all the hatred and evil onto myself, then die beneath the swords of the army sent to hunt me down, this world will surely know true peace, won't it? “My student, please kill me.” This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.