In 2019, a rift to another dimension suddenly opens in the skies above, revealing a "turnabout" alternate world called "Shinkoku Nippon." This parallel version of Japan maintained its militarism and remains stuck in the Showa era. Shinkoku Nippon invades our Japan with its "Genmu" gas weapons and giant humanoid "Garan" weapons. The invaders immediately take over our government and all but conquer Japan. As a result, our Japan never ushers in the Reiwa era. A decade later, our Japan has been revamped as Genkoku Nippon, a puppet state of Shinkoku Nippon. Under harsh censorship, the once thriving manga, anime, idol, and similar sub-cultures have completely died off...or so it seemed.

The special will revisit the childhood past of the three sworn brothers Luffy, Ace, and Sabo, when they all dreamed of becoming pirates. In addition, it will depict how Sabo originally came into the kingdom of Dressrosa (which was not depicted in Eiichiro Oda's original manga or the television anime), as well as his reunion with Luffy from his point of view.

Ever since her crush rejected her by insulting her appearance, Sunako Nakahara has been a shut-in with a hatred for beauty, embracing all things morbid and occult-related. She is sent to live in her aunt's mansion which, to her dismay, she'll share with four exceedingly handsome boys her age. Furthermore, her flighty aunt has made a deal with these boys that in exchange for living there rent-free, they are to turn Sunako into a proper lady by the time she returns from a trip around the world. Thus begins Sunako's hectic life with abrasive Kyohei Takano, ladies' man Ranmaru Morii, calm Takenaga Oda, and friendly Yukinojo Toyama. As she interacts with them she finds them less obnoxious, and she may not be as much of an outcast as she thought. [Written by MAL Rewrite]

Do you know when you are going to die? Michiru Kita does, as she has the ability to see a "ring of death" on the necks of those around her—and the darker the ring, the closer one is to death. One day, she notices that two boys in her class, Chika Akatsuki and Shito Tachibana, have completely black rings. Seeking to warn them of their impending demise, she stumbles onto their secret: they are already dead, but are kept alive due to a contract with Zombie-Loan, a mysterious loan office. Of course, nothing comes without a price, as the boys must hunt down and kill zombies in order to pay off their debt. And once they learn about Michiru's "Shinigami Eyes," they drag her into their crazy world. [Written by MAL Rewrite]