The stage this time is the UA dormitory just before season 5's Endeavor Internship arc! In the middle of winter, a hot and blustery cold battle is unfolding at Heights Alliance! Third-year Mirio Togata appears suddenly as the first-year students in Class A are bored during their ban from going outside. He brings with him the card game "Yuuei Heroes Battle," created by the support class. As each student picks cards and joins the fierce battle, there seems to be more to the game than meets the eye. At the end, who will emerge victorious?

Two years after the battle against Eosmon, Davis Motomiya, Ken Ichijouji, Yolei Inoue, Cody Hida, T.K. Takaishi, and Kari Kamiya meet a boy named Rui Owada, who is found with a depowered Digivice and claims to be the first Digidestined ever. In addition, a Digimon named Ukkomon appears in the real world, who wants every person in the world to have their own Digimon partner.

Rudger is Amanda Shuffleup's imaginary friend. Nobody else can see Rudger—until the evil Mr. Bunting arrives at Amanda's door. Mr. Bunting hunts imaginaries. Rumor has it that he even eats them. And now he's found Rudger. Soon Rudger is alone, and running for his imaginary life. He needs to find Amanda before Mr. Bunting catches him—and before Amanda forgets him and he fades away to nothing. But how can an unreal boy stand alone in the real world?

"The word 'no' doesn't exist in a concierge's dictionary." That's just one of the demanding rules that Akino must abide by in her new job as a saleswoman at the elegant and expansive Hokkyoku Department Store. It's a very special store — the customers are all animals, and the most valued among them are of extinct species. Sea minks, laughing owls, Japanese wolves, even an enormous mammoth — that's Mr. Woolly, the celebrated sculptor whose works are showcased at the store. It's still a luxury retail space, though, and anxious Akino finds her hands full with the customers' challenging requests. These range from hard-to-find merchandise to more complicated matters of the heart. Can the inexperienced Akino fulfill their whims and meet their expectations? If she wants to keep her job, she'll have to succeed while under constant observation by the fussy floor manager Mr. Todo, a creepy consultant eager to downsize the staff, and the store's enigmatic president (who is not a penguin, by the way!).