Engimon

The devil king Lucifero suddenly declares he's going to retire, and must choose a successor. The Devil King Cadets gather one after another, and go to the human world to participate in the succession contest. But only the devil king's own descendant Osamu has no interest whatsoever in the contest. Compared to the fate of the world, Osamu is more interested in his part-time job at a convenience store. Osamu has no choice, however, but to start collecting familiars called "Child," which are born from human souls. Osamu still only has an interest in his part-time job, and he's a few steps behind the rest of the Cadets.

When Bibimbap, the last daughter of the Horumon Clan falls in love with Kinnikuman during her mission to assassinate him, her father Horumon Yaki enlists the aide of Shishkeba Boo of the Barbecue Clan, promising him Bibimba's hand in marriage. Shishkeba Boo himself has joined forces with the "Dark Monarch" Black Emperor, who looks to destroy Kinnikuman.

While Kinnikuman is on vacation with Mari-san's kindergarten class at Easter Island, the young wheelchair-bound Kouichi-kun laments being with an idiot like Kinnikuman, preferring to instead be with his favorite Seigi Choujin Buffaloman. Meanwhile, the other Seigi Choujins are also vacationing at ancient landmarks.

As the whole world watches the Choujin Rugby game on TV, the "Underground Space Emperor" Hydra King has his Underground Space Supermen kidnap Robin Mask. Their aim is to lure out the Seigi Choujins and then attack them using the Robin Memo, which contains info on all of the Seigi Choujin's weaknesses. Watching on TV all over the world, Kinnikuman and the Seigi Choujins get together and head for Planet Hydra.

After the events of Link Joker-hen, Takuto Tatsunagi announced an invite-only tournament in a dream, and invited both Aichi and Kai to take part in "Messiah Scramble". The prize being the card named "Messiah", the name of a saviour that was heard in a dream. At the same time, there were many incidents of units disappearing from Vanguard cards throughout the world. Aichi and Kai team up to a confront an enemy that threatens the peace they've just regained. The movie is a prequel to Legion, leading up to Aichi's disappearance.