There isn't a single person in Sakuradamon High who hasn't heard the legends about Seiji The Mad Dog Sawamura's demonically powerful right hand. His reputation makes it fairly difficult for him to approach girls, and after being rejected 20 times straight, he half-jokingly vows to finish high school with his right hand for a girlfriend. Much to his surprise, after waking up the next morning, Seiji discovers that his demon right hand has mysteriously turned into a miniature girl, Midori Kasugano, who reveals that she has had a crush on Seiji for the past three years. Because their situation is not ideal for either of them, Seiji attempts to return Midori to normal. But after causing a big misunderstanding at the Kasugano household, the pair decide to keep their predicament between them until a solution is found. Thus begins an odd relationship, and what could be the only chance for Midori to finally be with the one she loves.

The Franchouchou girls are back and better than ever! Unfortunately for them, they are also heavily in debt. After a concert bombs, the undead members are forced to take day jobs to pay off the venue, and their normally eccentric manager, Koutarou Tatsumi, sinks into alcoholism. But dark days cannot keep these idols down! Rival idols appear, a famous talk show host retires, and existentialism takes root. Koutarou's legacy will slowly unravel while a journalist closes in on the truth. As Saga plunges into chaos, Franchouchou may realize being dead is the least of their worries—but at least the legendary Tae Yamada gets even more legendary!

On the beautiful banks of the Arakawa River, it is lively as ever. Now known as Recruit, Kou Ichinomiya has adjusted to the troubles his unconventional neighbors brew daily. However, the atypical scene is about to get even rowdier when their community adds a couple of oddball enthusiasts: a tall, muscular woman calling herself Amazoness, followed by her loyal Tengu henchmen; and Captain, self-proclaimed Commander of Earth's Defense Force against Venusians. In spite of all the commotion, Recruit gradually learns more about his lover Nino and the story that shaped her.

The great Jahy will not be defeated! Simultaneously combating starvation, the lack of A/C, and the unavoidable weakness of turning child-sized, Jahy—previously the second strongest being in the Dark Realm—is under great stress. If it weren't for the destruction of the mana crystal which used to power the Dark Realm, Jahy would still be living a life of power and luxury. And yet, at the moment, brawling with the landlady over rent is a recurring event for Jahy. Just to have a place to stay and food to eat, Jahy must work part-time. However, her immense pride will not allow her to live under such poor conditions for any longer than necessary. Vowing to reinstate the Dark Realm to its former glory, Jahy continues her journey to reassemble the mana crystal.