Kouji and his friends have defeated Dr. Hell and are now enjoying a break, but suddenly a strange prophet appears and warns everyone of an oncoming danger, mechanical beasts never seen before start appearing all around the world wrecking havoc. Its up to Kouji and his Mazinger Z to stand up to this threat but it seems he is vastly outnumber and outmatched.

This film served as an alternative link between the Mazinger Z TV series and the Great Mazinger TV series. It basically introduces Great Mazinger to the audience, as well as his enemies from the Mikene Empire.

Gluttonous and tomboyish, Lan Mo is hardly anyone's ideal girl, but with a magical hair clip from a mysterious trinket shop that disappears the next day, she may be able to become just that. With its power, she can transform into a beautiful and feminine young lady, someone who may finally be able to catch the eye of her childhood friend and crush, Liu Yifeng. However, keeping the clip's secret proves difficult for Lan Mo when faced with Liu Yifeng's admirers and the mysterious stranger Xia An. And to further complicate matters, Lan Mo's possession of the hair clip may turn out to be more than just mere coincidence. [Written by MAL Rewrite]

Takuya Arima is a young student whose father, a historian who has conducted various researches, disappeared recently. During a summer vacation Takuya receives a peculiar package from his missing father, along with a letter containing information about the existence of various parallel worlds. At first Takuya doesn't take it seriously, but soon he realizes that he possesses a device that allows him to travel to alternate dimensions. Is his father alive, after all? If so, where is he? (Source: VNDB)

Shortly after winning the World Martial Arts Tournament and using the winnings to pay off her grandfather's one hundred million yen debt, a reporter shows up on Kizuna Todoroki's doorstep. Impressed that such a young girl was able to defeat the 10-year reigning champion, the reporter wants to interview Kizuna for a piece on her and the Wadachi Ju-ken school of martial arts founded by Kizuna's grandfather. However, before the interview can end, challengers begin to appear at the Todoroki household. After hearing that Kizuna is only 12, they hope to defeat her before her 13th birthday to usurp her position as the world champion. As dozens of challengers appear, Kizuna struggles to bring them all down, while the reporter learns more about the Todoroki family.