Kanzaki Kumo knew he could indulge in tender company for a little while, but he absolutely could not lose himself in it, especially while Muzan was still alive and kicking.
Otherwise, he and everything around him would vanish like bubbles at some point in the future.
After killing Upper Ranks repeatedly, along with that shouted question that had kept Muzan "warm" all night, Kanzaki Kumo was certain he had successfully caught Muzan's attention.
Although he could not possibly take priority over the Blue Spider Lily, Muzan probably would not mind disposing of an infuriating human along the way.
So his only chance of victory lay in eliminating Muzan's subordinates as quickly as possible, then finding a way to lure him out and initiating the decisive battle while the Demon Slayer Corps was stronger than ever.
Besides eliminating Muzan's subordinates, two other problems needed to be resolved before launching that battle-the bait, and the drugs being developed specifically against Muzan.
Kanzaki Kumo had some ideas about the former, but progress on the latter was still unclear.
And so, Kanzaki Kumo headed toward Tamayo's laboratory while considering his next steps.
Two or three months had passed since the successful development of the drug that reversed demon transformation, and during that time, Tamayo and Shinobu Kocho had frequently holed up in the laboratory, devoting themselves to researching poisons.
If not for celebrating Kanzaki Kumo's birthday, and also honoring her promise to someone to "balance work and rest," Shinobu Kocho would not even have planned to return to the Butterfly Mansion yesterday.
"Lady Tamayo is conducting an experiment. No unauthorized entry!" As soon as Kanzaki Kumo reached the laboratory entrance, Yushiro, who stood outside like a guardian, stopped him.
Somewhat surprised that Yushiro dared to block his path, Kanzaki Kumo raised an eyebrow and