Ultrawoman Grigio's History
Ultrawoman Grigio is a female Ultra Warrior, and is the younger sister of Ultraman Rosso and Ultraman Blu.
During the battle against Ultraman Tregear and Snake Darkness, Asahi had transformed into Grigio Regina. However, her attacks, as well as those of Ultramen Rosso, Blu and Geed were ineffective against them. As they were about to be beaten, Saki Mitsurugi's spirit reached out to Asahi, who unlocked her true power. Grigio Regina's exoskeleton then split open, and Ultrawoman Grigio emerged from it. Restoring the energy of the three Ultra Warriors, she helped them against their opponents but they were still outclassed. To finish the battle, the Minato siblings joined hands and called upon the Makoto Crystal, fusing Rosso, Blu and Grigio into Ultraman Gruebe, joining Geed Ultimate Final in a more evenly-matched battle. Eventually, Gruebe destroyed Snake Darkness via the Gruebing Beam and freed Yukio from Tregear's dark influence.
Due to Ultrawoman Grigio's crucial role in the formation of Ultraman Gruebe, her kidnapping was suggested to the League of Darkness by Ultraman Tregear, setting forth the involvement of the Minato brothers' into the eventual fight.
With her brothers overseas, Asahi remained in Ayaka City to protect it from danger. She transforms into Ultrawoman Grigio to train, but Ultra Dark-Killer suddenly arrives through a portal chasing Ultraman Zero. Dark-Killer demanded that Zero hand her over, but he refuses, so Dark-Killer sends them both to his Dark-Killer Zone. Refusing to give up, a weakened Grigio managed to protect Zero and hold her own against Ultraman Zero Darkness before proceeding to replenish the energies of her brothers, allowing them to merge into Ruebe, who later overwhelmed the combined efforts of Zero Darkness and Dark-Killer. However, Tregear revives both Zero Darkness and Dark-Killer, the latter of which growing to gigantic size.
To battle him, the Minato siblings fuse into Ultraman Gruebe. Once the New Generation Heroes had finally defeated Dark-Killer, Rosso and Blu decide to send Grigio back to Ayaka City because they needed someone to protect it. While her brothers and the other New Generation Heroes fight against Tregear near the Land of Light, Zero sends her back home.
Once the other New Generation Heroes regain their powers, they face off against Tregear, the Grimdo-possessed Taro and Tregear's monsters, with Rosso and Blu fighting against Gorothunder. After their opponents receive power ups from Grimdo, Grigio flew across the universe and arrived just in time for the three siblings to fuse into Ultraman Gruebe to finish off Gorothunder. Initially being trounced by Grimdo after it had absorbed Tregear, the New Generation Heroes fused with Taiga into Ultraman Reiga and defeat Grimdo. The New Generation Heroes give their parting words to the Tri-Squad and Hiroyuki and return to their home worlds.
While her brothers went off to face the threat of the Devil Splinters, Grigio remained on Earth to protect Ayaka city. She battled against a Zandrias and Noiseler, and drove them away by firing her Grigio Shot at them. Ultraman Zero arrived and recruited Grigio for the fight against Absolute Tartarus. He told her to go to Planet O-50 to look for someone, and encountered Ultraman Fuma while she was there.
Yullian and Ultraman 80 had crash landed on Planet Ebil on the way to a Galactic Federation Peace Conference on Planet Kanon and were soon attacked by Zett and his Zetton army. They sent a distress signal to the Land of Light. Responding to the message, Taiga, Mebius and Z immediately left the Land of Light and arrived on Planet Ebil to assist them. They were later joined by Ultraman Zero, Ultraman Joneus, Ultraman Titas, Ultraman Fuma, Ultrawoman Grigio, Ultraman Ribut and Andro Melos, and they all fought the Zetton army together.
Soon after defeating Ultimate Shining Zero in Narak, Absolute Tartarus appeared, taking Yullian hostage and informing the heroes of his true motives before getting Ultraman Belial and Ultraman Tregear to fire their beams at them all. The group also received word from Ultraman Hikari that Genegarg had stolen a Z Riser and Ultra Medals from the Land of Light, causing Z to fly off in a hurry while Zero followed him. The Ultra League and the Tri-Squad prepare to recruit more heroes for the upcoming fight against The Kingdom.
After returning to the Land of Light, Grigio decided to join Mebius at the Ultra Colosseum to become stronger in preparation for the fight against The Kingdom. While there, she met Ultraman Nice, Zearth and Boy. After hanging out, Boy took the four of them to the Monster Graveyard where they found a Devil Splinter. Gina Spectre arrived and tried to take the fragment from them, only for Tartarus to soon appear and restrain Grigio, allowing Alien Bat to create Ultrawoman Grigio Darkness, just as Ultra Dark-Killer had done to Zero and attempted to do to her brothers in the past, and the two Grigios fought.
The New Generation Heroes regroup in the Monster Graveyard and face their enemies old and new. Zearth, Nice and Boy's cheers for Grigio gave her the determination to defeat Grigio Darkness. However, Tartarus uses the gathered Devil Splinters to empower Reibatos, who recreates the Giga Battlenizer, and fuses Gina with the souls of her brothers to create Gua Spectre before he dies of an overdose. Gua Spectre's new perfect form proved to be too powerful, forcing the New Generation Heroes to fuse into Ultraman Reiga, who easily defeats Gua before defusing into his components, somehow leaving Gina alive for a moment. Grigio tried to heal Gina, but was told to stop when Gina said that the healing would not work and that she was revived without any life force in the first place. Gina asked for Grigio's name before she died, and thanked her for her kindness.
Just after the battle, Geed and Taiga are struck by Belial and Tregear who retreat shortly after, stealing the Beliarok from Z in the process.