After that, life returned to the same daily routine.
Training, patrols, staking out Doma.
Unfortunately, they failed to catch Doma, so they caught a minor demon to test the drugs on instead.
Random demon: so?
Since Akaza's death, demons in the outside world had become even less active. Even catching one to test drugs on took more effort now.
Kanzaki Kumo: annoyance +1.
Moreover, Doma had not returned to the Eternal Paradise Cult in quite some time.
Kanzaki Kumo: annoyance +2.
Doma: currently being exploited by an unscrupulous boss.
Kanzaki Kumo: never mind, then.
So the "Mu" in Muzan could also stand for "unscrupulous," right?
Still, although they had not found Doma, Tamayo had produced a very welcome result in drug research.
That day, all the Hashira of the Demon Slayer Corps gathered somewhere other than the Ubuyashiki Estate for the first time, solely to witness an experiment worthy of going down in the Corps' history-reversing demonization.
The experiment took place in Tamayo's underground laboratory.
The participants included Shinobu Kocho as the recorder, Tamayo as the experimenter, and Yushiro in charge of preparing materials.
The one receiving the injection was Chachamaru, who had volunteered to be the "guinea pig."
Of course, the drug being injected into Chachamaru had already undergone repeated experimental improvements and had its viability verified.
Today was simply to let the Hashira of the Demon Slayer Corps see for themselves that a drug capable of turning demons back into humans had indeed been developed.
As for the demons used in the earlier experiments...
Whenever an experiment failed, Kanzaki Kumo casually finished the subject off with a slash.
In the sole successful case, Kanzaki Kumo had not even needed to act.
After all, he always used whatever was available on-site for his experiments, pinning the demon to