Recaps

William and his allies defeated Glid and drove Gluttony from Zion, but the battle left William and Lorien badly injured and the city in need of rebuilding. After leaving for the Old World, William secured Byrne’s support against the Bloodfolk and took Orlena as his student after she discovered the abyss within him.

• Yi Chen fought Marquis Gluttony, while Lorien and Jin arrived to protect William from Marquis Glid.
• William and Lorien underwent Conjoined Surgery, fused beneath the moon, and defeated Glid before William finally killed him using Glid’s exhausted Epidemic Fluid against him.
• William sent Glid’s head through the reopened passage as a threat to the Bloodfolk, while Zede fought Gluttony and forced him to flee toward the Old World.
• Lorien separated from William, leaving them both severely injured, and William and Yi Chen agreed to delay an all-out attack while Zion recovered.
• William learned that Galon remained alive, explored Glid’s treasury, and later left Zion for the Old World with Regan as his companion.
• At Black Roundworm Company headquarters, Byrne Douglas offered William military support against the Bloodfolk and gave him access to the company’s resources.
• William discovered the Human Abyss inside himself while bathing, and Orlena bit off her abyss-affected arm before regenerating it.
• William made Orlena his student, imprinted madness on her and her parasite, and recorded her as a B-rated student in the Xuexin Brain Network.

William completed the Gu Experiment, developed Abyssal Parasitism, and returned to the circus before entering Catherine’s nightmare to find deep-sea supplies. Their dream brought them to a strange hospital and then Yuyuan County, where William confronted a monstrous pregnant creature in the Urban Village.

• William endured the Gu Experiment, used the larvae to explore the Tenth Abyss, and developed Abyssal Parasitism before the Abyss emerged at Black Gu headquarters.
• William left Black Roundworm Company, returned to the circus, and asked Nash to investigate Catherine, whose deep-sea pool and growing malignancy concerned him.
• William trained with the Rabbit Men to find the rhythm of his Abyss, then visited Catherine’s factory and entered her nightmare, where Nashatar turned him into fish.
• Catherine explained that she needed deep-sea water and Octopus Essence, so she and William traveled through a dream to the Black Sea and awoke restrained in a mental hospital.
• William and Catherine escaped the hospital with Fangfang after William freed her from the shrine suppressing her, then fled into the forest and hid in a delivery truck bound for Yuyuan County.
• William, Catherine, and Fangfang hid in a hotel while two detectives investigated a grotesque shrine at the Boss’s home and encountered a horrifying pregnant woman.
• William and Catherine entered the Boss’s home to investigate the evil presence, and William tore apart the emaciated pregnant creature whose belly was filled with fetal faces.

William and Catherine traveled to Linghai seeking to restore Catherine's Nightmare Ability, fought Flower Sea Buddha Mother alongside Yi Chen, and returned to the Old World with new powers. Their joint dish strengthened Boss at the Demon Feast, after which circus reforms made fear collection the basis for choosing the next leader.

• William and Catherine helped the detectives fight the Boss, borrowed Guanyin the Child-Giver, and boarded a train to Linghai.
• William digested the unsealed idol through his Abyss, spreading a dark disease to its deity's connection before the group evaded quarantine inspections in Linghai.
• William, Catherine, and Fangfang reached Flower Sea Village, where William killed the Boss's Wife after she tried to sacrifice him and Catherine ate a replica idol to locate the Main Idol.
• William and Catherine entered the underground temple, where Catherine attacked the Flower Sea Buddha Mother and Yi Chen killed the village chief while William helped the investigators escape.
• William developed an Abyss Body and crushed the Buddha Mother's divinity, Yi Chen shattered her White Jade Bottle, and Catherine consumed her body with eggs until only a Sarira remained.
• Catherine returned William and Yi Chen to the Old World through dreams, and Boss revealed that Catherine and the Vibrio Sea subjects had been developed as vessels for opening a world passage.
• William and Catherine served abyssal instant noodles that restored Boss's strength at the Demon Feast, and Art won the competition after Yi Chen took control of William to eat his dessert.
• Boss divided circus operations among traveling departments with fear quotas, and William organized noodle production before learning that fear collection would decide whether he or Mr. Gian became the next leader.

William traveled with Deslin, Nash, and Jessica into the Silver Sea to find Lorien and investigate the Moon in Water. After escaping Lorien’s illusion and meeting him in the Moon Core, William arranged a contest with Nash and Fana that ended with Lorien promising to bring the moon to the circus once his work in the Silver Sea was finished.

• Boss dispatched the Circus departments across the Old World, and William left with Nash for the Human World.
• William and Nash met Principal Deslin, who joined their journey to the coast after learning they planned to find Lorien on the moon.
• William, Deslin, and Jessica boarded the Great Gum and entered the Silver Sea, where Yi Chen led the group onto an island trapped in a True Illusion.
• The island separated the group with false versions of their companions, and Deslin and Jessica found a passage leading into the Moon in Water.
• Jessica reached the Moon Core and watched Lorien prepare to execute Yi Chen, who broke free of the illusion by repeatedly surviving his own death.
• Lorien revealed that he had fused with Galon, welcomed William’s group, and gave them Moon Marks after William offered to help him kill the Fish Source.
• William proposed that Lorien temporarily join his circus department so he could supply Instant Noodles to the moon, and Lorien challenged Nash to defeat Fana before agreeing.
• Nash fought Fana, but Lorien declared Fana the winner and promised to bring the moon to the circus after completing his work in the Silver Sea.