Reugosite has finally arrived on Earth as he begins to rampage in attempts to destroy the entire planet! Saki transforms into Grigio Regina and faces off against him in a decisive battle to end it all!
While fighting against Reugosite, she gathered all of the energy from the R/B Crystals into her own body, to prepare for a suicide takedown of Reugosite!
Ultraman Rosso and Ultraman Blu suddenly appear in the midst of the battle to pressure Saki to not go through with her plan! The two Ultra Brothers stand in between them in a desperate attempt to protect Saki from Reugosite…
- Katsumi Minato (湊カツミ Minato Katsumi): Yuya Hirata (平田 雄也 Hirata Yuya)
- Isami Minato (湊イサミ Minato Isami): Ryosuke Koike (小池 亮介 Koike Ryōsuke)
- Asahi Minato (湊アサヒ Minato Asahi): Arisa Sonohara (其原 有沙 Sonohara Arisa)
- Ushio Minato (湊ウシオ Minato Ushio): Ginnojo Yamazaki (山崎 銀之丞 Yamazaki Ginnojō)
- Mio Minato (湊 ミオ Minato Mio): Kaori Manabe (眞鍋かをり Manabe Kaori)
- Saki Mitsurugi (美剣サキ Mitsurugi Saki): Ayane Kinoshita (木下 彩音 Kinoshita Ayane)
- D.R.L.N. (ダーリン Dārin): Kaede Yuasa (湯浅 かえで Yuasa Kaede)
- Ultraman Rosso: Hideyoshi Iwata
- Ultraman Blu: Akira Okabe
- Grigio Regina: Hiroyuki Arai
- Reugosite: Shinnosuke Ishikawa