A modern life scientist who mastered developmental biology, genetics, immunology, neuroscience, synthetic biology and evolutionary theory. After his death, he traveled to the world of Naruto and became Orochimaru in his childhood.
The time point is after Orochimaru's parents died and before he became Sarutobi Hiruzen's disciple.
He inherited Orochimaru's original memory, talent, cold temperament, and fear of death, but he possessed the knowledge system and research methods of a modern scientist.
He soon discovered that the ninja world's understanding of the human body and chakra was extremely primitive.
Medical ninjas can use chakra to heal wounds, but they don't know why infections occur; Uchiha can open the Sharingan, but no one knows why mental stimulation changes the eye structure; Senju Hashirama's cells are transplanted as a panacea, but no one studies rejection, canceration and cell competition; the so-called lineage limit is not a simple "bloodline ability", but a complex expression system determined by genetics, development, chakra organs and mental state.
Orochimaru realized for the first time:
This is not a world without science.
This is just a world that has mastered miracles but never understood them.
