Just like that, the Ghost Eye King and his ambitions exploded on the spot like a human base getting its home demolished by the Dragon Dog, ascending straight to heaven.
Shizuku felt nothing about it and even found it a little funny. Bosses were basically all like this, and their endings were naturally much the same. No matter what grand ambitions he harbored about destroying the world, he was still destined to be slapped flat by Shizuku.
Incidentally, afterward, Shizuku had someone send Sharaku Hosuke, who had lost his third eye, back. His Three-Eyed personality had vanished into ashes along with the Ghost Eye King. Presumably, the kid would not cause any more trouble after this and would simply become an ordinary person.
As for Pei, Shizuku took away the original Pei's soul and reshaped a body for her. Although Three-Eyed Pei had lost her third eye because its power had been absorbed, she no longer needed that power anyway.
Incidentally, after Three-Eyed Pei lost the power of her third eye, Mayu Hinase also changed back from "Nothing" into a human. Mayu Hinase herself did not particularly mind, and even found it somewhat regrettable—after all, as "Nothing," she could not be killed no matter what, which meant she could follow Shizuku into dangerous places. Unfortunately, "Nothing" had an obvious weakness as well. If Pei were attacked, Mayu Hinase would also be in danger, and Shizuku naturally would not allow such a risk to exist.
Put simply, Pei and her other personality had both become human. The two would live on as sisters from then on. After thanking Shizuku, they left Japan and returned to China. As for what they would do after going back... that was up to them.
After all, life was difficult no matter where one lived.
Meanwhile,