Chapter 78:
In the 21st year of Konoha, Orochimaru successfully completed cell transplantation.
In the 22nd year, he achieved cell division.
By the 23rd year, Orochimaru developed the biological genetic evolution fluid.
In just three years, Orochimaru had made breakthroughs in three cutting-edge technologies, all while completing missions that took him to various countries surrounding the Land of Fire. Although he hadn't explored every detail about these smaller nations, his travels gave him enough insight to understand their general structure and resources.
During this period, Konoha was relatively peaceful. Orochimaru, Tsunade, and Jiraiya Konoha's rising stars had little to occupy them beyond the occasional mission. When they weren't out on assignments, they each focused on their respective areas of interest.
For Orochimaru, it was scientific research. Tsunade immersed herself in medical ninjutsu, while Jiraiya delved into the mysteries of senjutsu.
Occasionally, the three would get together to share a meal, chat, and relax. Tsunade, in particular, seemed to see these gatherings as something more a chance to deepen her budding romance with Orochimaru. At least, in her mind, that's what it was. Whether Orochimaru shared that sentiment remained an open question.
As for Orochimaru's research? Cell transplantation and cell division weren't particularly groundbreaking abilities. In the original timeline, Orochimaru had long since mastered these skills. Cell transplantation was self-explanatory, allowing him to transfer cells between different subjects. Cell division, however, was more critical to his future ambitions.
In simple terms, cell division is the process by which a single cell divides into two, with the mother cell passing genetic material to the daughter cells. This principle laid the foundation for cloning technology, which would ultimately allow Orochimaru to extend his lifespan and even achieve resurrection. By splitting his own cells, injecting them with chakra, and sealing them into other people's bodies through a curse mark, he ensured that his essence could continue to live on, even after death.