After using "Lantern"'s ability to return to the village once more, Shinji dismissed Haku and Sasuke, then quietly made his way alone to the secret laboratory outside the village.
After removing his mask and taking off his Red Cloud outfit, Shinji went over to his workbench.
He took out his notebook and looked over the notes he had just made on Upper Moon Two's physical reaction to the Type Two Aging Potion. His expression grew more solemn.
The Type Two Aging Potion, which he had placed such high hopes in, had performed unexpectedly poorly against a demon of Upper Moon Two's caliber.
According to simulations by Tsunade's research team, injecting a large dose of the Type Two Aging Potion into the demon locked in the laboratory might be enough to kill it outright.
Yet the Aging Agent was potent enough to kill ordinary demons, while its effect on an Upper Moon demon had been so much weaker. It went without saying that it would be even less effective against the mysterious figure known as the Demon King.
"I never expected the difference in regenerative ability between demons to be this great."
After a quiet sigh, Shinji began working on ways to improve the Aging Agent.
He hadn't been slacking off in the research group lately. Besides the work assigned to him, he had also learned a great deal about preparing medicines from the pharmaceutical team.
According to the team, Shinji was now a qualified pharmacy assistant.
This wasn't just a polite compliment from the pharmaceutical team. It was an objective assessment of Shinji's abilities.
But that wasn't the extent of Shinji's skill. The Medical Ninjas on the pharmaceutical team didn't know that, besides his Eternal Mangekyo Sharingan, which could perceive details with extraordinary precision, Shinji also wielded a Byakugan that