Part 1: After serving his time in jail, again, Jinmen-ken wonders what he should do next, until passing by a movie theater and deciding that he should become a Hollywood star. After an extensive fantasy, he prepares to board an airplane headed towards America, only to be arrested again. As Jinmen-ken demands to be free, Komasan watches on. Part 2: Keita is anxious for class to end, as he really needs to use the toilet, but when he gets there he sees an unusually long line of boys waiting, even on the other floors. However, on the third floor he finds Whisper, and Keita tells him he thinks a Yo-Kai is causing this mayhem, even though Whisper has never heard of such a Yo-Kai. Keita scans with the Yo-Kai Watch to find Morezō, a Yo-Kai that makes boys feel the need to pee. Soon, Kanchi and Kuma wander upstairs to check on Keita, only for Morezō to affect them as well. In a rush, Keita calls on Gurerurin to deal with Morezō, only to put the Yo-Kai Medal in backwards, before correcting himself. However, Morezō affects Gurerurin as well. Next, he calls on Jinmen-ken, who is also affected bu Morezō, and then arrested for public urination. He next calls on Mabo-rōshi, who casts an illusion to make everyone think the hallway is full of urinals, one of which Morezō intends to use, but Keita asks him to stop before something bad happens. He next asks Wasuren-bō to take care of Morezō, finally able to make Morezō release the rest of its water and freeing the boys from its influence, including Keita. Part 3: Keita returns home and needs to get his soccer ball so he can play with Kanchi and Kuma, but finds that his bedroom door is locked from the inside. Jibanyan is inside, but will not let Keita in. Whisper hears a hum from inside, and realizes Jibanyan must be under the spell of Hikikōmori, a Yo-Kai that makes people want to stay locked up in their rooms. Whisper notes that Hikikōmori is very well known, but Keita has never heard of him before. Keita is worried he will be late meeting up with Kanchi and Kuma, but realizes he can lure Jibanyan out with chocolate bars, but not even they can break Hikikōmori's hold. Keita next tries a NyaKB48 photobook, which manages to get Jibanyan to open the door, but he locks it up after taking them from Keita. Keita tries to get Melamelion, but Jibanyan decries Melamelion's calls of trying to fire him up, and only makes Melamelion run out in anger. Keita next asks for Honobōno and Donyorinne's help, and their amorphous forms allow them to get inside Keita's room, and flatten Jibanyan and take him out of the room, but now the room is still locked from the inside and Jibanyan is still under Hikikōmori's control. Keita calls on Morezō to waken Jibanyan up, causing Hikikōmori to escape. After both use the toilet, Hikikōmori tries to take control of Jibanyan once more, but Keita stops him and tells him he cannot do this to people and Yo-Kai, but Hikikōmori is still afraid of going outside. Keita allows him to stay in his room, and Hikikōmori gives him his Yo-Kai Medal in thanks. Keita goes to open his door, but it is still locked, when Whisper simply phases through the door to unlock it, angering Keita that Whisper was able to do this the whole time.