The battle between the two Ultra Brothers and Saki Mitsurugi, who transformed into a kaiju, was long and hard with no clear winner. But shortly afterwards, Saki visits the two brothers at Quattro M! Although Katsumi proposes that they all work together to save the world from destruction, Saki refuses to respond, and instead begins to tell them the story behind their mother, Minato Mio’s disappearance! And an inescapable, centuries-old battle will start once again…
Yuya Hirata
Katsumi Minato / Ultraman Rosso
Ryosuke Koike
Isami Minato / Ultraman Blu
Arisa Sonohara
Asahi Minato
Ginnojo Yamazaki
Ushio Minato
Kaori Manabe
Mio Minato
Kaede Yuasa
D.R.L.N. (voice)
Motoki Fukami
Makoto Aizen / Cereza
Ayane Kinoshita
Saki Mitsurugi / Grigio
Minegishi Kiara
Isami Minato (Young)
