Rimuru backs Clayman into a corner trying to get him to reveal who he's working for, but even on death's door, Clayman's lips are sealed. Left with no other choice, Rimuru finishes Clayman off. With Clayman dead and Carrion and Frey announcing that they're stepping down as Demon Lords, the total number of Demon Lords including Rimuru is reduced from ten to eight. Guy coerces Rimuru into coming up with a new name for their group, and Rimuru's solution is "Octagram," representing each of the Demon Lords as an eight-pointed star. Thus a slime became one of the eight Demon Lords, marking the start of a new age.

The current Kenshin has left his past as a manslayer and wished for a peaceful world. Though Elder looked at him with eyes of confusion, Kenshin knew that Elder also shared this same desire for a healthy society and felt a sense of comradery with him. Meanwhile, another doctor called Deian Ishizu was scheming to get rid of Elder, as Elder did not seek monetary gain in exchange for her medical services, and Deian thought this was disrupting his business. Deian hires Espiral, a master of Western swordsmanship, to get rid of Elder. However, it seems Espiral has an entirely different motive for taking on the job...

Itadori reawakens with grievous resolve as he bears witness to the aftermath Sukuna has wrought upon Shibuya. Meanwhile, Nanami continues to fight through packs of transfigured humans in an exhausted haze until Mahito appears before him.

With Keiya unable to act while Mikio has a knife at Isaku's throat, it looks like both Keiya and Isaku are at Mikio's mercy. But when Mikio attempts to sexually assault Isaku, she doesn't play the role he scripted for her.

A class observation day was scheduled to be held in Gaku's class. However, Gaku was worried that if Hayato took a day off to attend, it would cause inconvenience at his workplace and increase his workload.

Alycone reflects on Philomela's childhood and her all-important task. An ancient and fearsome goddess blocks Chise's path on the way to the Sargant family home and demands tribute that was promised a year ago.

Yo and the Kingdom of Science capture the petrification device, but Ibara isn't going down without a fight.

Yo and the Kingdom of Science capture the petrification device, but Ibara isn't going down without a fight.

Belgrieve continues to handle the trouble that's cropped up in the countryside. Meanwhile, Angeline stumbles upon trouble of her own in the city.

When Yuuya reunites with the girl he saved back at the convenience store, she invites him to attend the prestigious Ousei Academy. Yuuya isn’t sure that he’s worthy of attending a school full of geniuses, but he’s persuaded to try it for just one day.

Thorfinn continues to be haunted by his usual nightmares. Thorfinn, who had thought only of revenge as he lived on the battlefield, lost his reason to live when Askeladd died. Einar and Sverkel tell the troubled Thorfinn that "people can change."

The double-headed demon has been stuck with magic powerful enough to fell a dragon. In the aftermath, Morlock feels sympathy for the demon dog and says he wants to try to save it. But then, Saitou and the others are struck by a surprise attack!

Marin and Wakana start to grow closer as he helps her create her cosplay. Though he's happy about the fact that Marin treats him the same way at school as anywhere else, he also starts to worry about the fact that other people think it's weird that they're hanging out. Despite that, Marin takes Wakana shopping so they can look for materials needed for her cosplay.