Continuing his masquerade as the deranged lunatic from the Lanling Jin Clan, Wei Wuxian resides in the Cloud Recesses while his former cultivation classmate, Lan Wangji, searches for answers about the demonic severed arm they have in custody. With an overwhelming dark energy emanating from the arm, the two are forced to work together in order to keep it contained. However, the demonic arm is not the only dark force lurking in the region, and as spiritual tensions rise in the mountains of the Gusu Lan Clan, it is up to the two of them to try and restore the natural order. The story of Wei Wuxian's fall from grace continues as more light is shed on his descent into the path of demonic cultivation. The demonic arm only further strains his mischievous spirit. This is the time for him to prove that he has truly broken free from the forbidden path and is not the maniacal sorcerer that everyone remembers him to be.

In the lead-up to a photoshoot in which Yua Nakabeni and Ren Aikawa have been invited to model for an illustrator, the two girls are feeling anxious. To help them out, their friend and fellow classmate Homi Moegi decides to run a practice shoot in hopes of easing their nerves. Yua and Ren repeatedly tense up during shots on their own, so Homi asks them to pair up for some couple shots, hoping that they will relax in each other's company. What begins as a series of cute poses soon turns into an alluring collage of legs encased in black stockings layered over one another.

The staff of the Spirits and Such Consultation Office—Arataka Reigen, Shigeo Mob Kageyama, Ritsu Kageyama, Katsuya Serizawa, and the spirit Ekubo—head to the Zebra Prefecture for a relaxing hot spring vacation. Their all-expenses-paid trip is sponsored by the owner of the Ibogami Hot Springs, who has asked Reigen to investigate claims of paranormal activity in the area. On the train ride to the inn, the exhausted Reigen and Serizawa quickly fall asleep, only to wake up and discover that they have been transported to a ghostly parallel world! Bewildered about how they got there, Reigen and Serizawa must find a way to escape in time to enjoy their day off.

Shigeo Mob Kageyama is now maturing and understanding his role as a supernatural psychic that has the power to drastically affect the livelihood of others. He and his mentor Reigen Arataka continue to deal with supernatural requests from clients, whether it be exorcizing evil spirits or tackling urban legends that haunt the citizens. While the workflow remains the same, Mob isn't just blindly following Reigen around anymore. With all his experiences as a ridiculously strong psychic, Mob's supernatural adventures now have more weight to them. Things take on a serious and darker tone as the dangers Mob and Reigen face are much more tangible and unsettling than ever before.