Chiba went to bed very early that night.
After carefully reviewing the list Kakashi had given him and taking out the Ninja Engineering Corps proposal—which contained an implicit training plan—to study it again, Chiba went to sleep. He did not continue his research into combining Sealing Jutsu Formulas with Curse Mark Jutsu Formulas.
After all, the formulas he had recorded that combined curse marks and seals could not yet be guaranteed to work. He would have to record and test the massive Sealing Jutsu Formula he had envisioned, one-tenth of the whole, before he could be sure. Although this was something that needed to be resolved as soon as possible, it could not be rushed right now.
Now, Higan had also displayed an unknown phenomenon. Its medicinal effect had ended after just ten minutes. There had been no side effects; after ten minutes, no toxins remained in his body, and all his bodily functions were normal. He was perfectly healthy.
It seemed like there was no problem, but in truth, there was a major hidden danger. Higan was poison, and an extremely potent one at that. If its effects differed from what had been described, that was something that needed to be taken very seriously. A discrepancy could mean the poison had undergone some sort of change. After all, Higan was a poison that had been tested very little. No one knew how stable it was, or whether its properties could remain stable without changing for some reason.
And if its properties really had changed, then anything could happen.
This time, its effect had ended after ten minutes with nothing happening. But next time, it might cause sudden death outright—or perhaps he would suddenly die after ten, twenty, or thirty minutes, with even CPR proving useless.
Therefore, he had no