Mirror Knight

Mirror Knight (ミラーナイト Mirā Naito?) a mirrorman from another universe than the showa universe that originated from the Planet of Mirrors who is Alien Esmeralda hybrid and was the protector of the planet Esmeralda. When Kaiser Belial's army begain there hunt for emeral ore, they came to Esmeralda. Mirror Knight fought bravely against their forces but was temporary corrupted by Kaiser Belial until he was freed by Ultraman Zero, who he later became a close ally of. After defeating Belial's army, Mirror Knight went on to form Ultimate Force Zero with Ultraman Zero, Glen Fire, and Jean-bot.

Mirror Knight, along with most members of Ultimate Force Zero, was killed by Ultraman Belial and the Darkness Five but was restored back to life when Shinning Ultraman Zero turned back time.

Mirror Knight made his debut in the movie Ultraman Zero The Movie: The Revenge of Belial.

Subtitle: Knight of Mirrors (鏡の騎士 Kagami no Kishi?)

Ultraman Zero The Movie: Super Deciding Fight! The Belial Galactic Empire
When Malebrandes  attacked Esmeralda, Mirror Knight appeared when Princess Emerana as about to be killed by a Legionoid. After a quick battle Mirror Knight sent the Princess to safety, then dashed away to try and protect the capital of Esmeralda from begin crushed by Malebrandes "claw". Knight successfully managed to protect the kingdom in time for all the residents to escape, but while he was vulnerable, Kaizer Belial appeared and stabbed Mirror Knight in the neck with his claws, corrupting the mirror's soul. But Mirror Knight managed to escape Belial and his army and retreated to his home the planet of Mirrors. But due to the darkness in his being left by Belial's attack, the leaders of the planet sealed Mirror Knight under the planet's ocean where he stayed brooding and disgusted with his predicament.

Then when Run (Ultraman Zero), Nao, and Princess Emerana came to the planet of Mirrors to look for the Shield of Baraji, the leaders of mirrors refused to help fearing that the Baraji's power would be useless against Belial after what he did to Mirror Knight. Zero decided that he would free the fallen mirror and offered to prove himself to the leaders. Mirror Knight attacked Zero feeling hatred towards the ultra due to Belal's influence, but Zero managed to rid Mirror Knight of Belial's essence by exposing him to his own pure inner light.

But imidantly after being freed of the darkness, Belial's general Iaron appeared with a legion of Brigantes in search of the Mirror World, Mirror Knight quickly sent Zero's party down to were the Sheild of Baragi was hidden, and flew off to protect his home from Iaron. However he failed and Iaron succeded in destroying the planet of Mirrors.

Mirror Knight is later seen int he Final battle against Kaiser Belial's army fighting against Iaron and killing the steel general, calling him fragil thus avenging his home wolrd. After Zero obtained the Ultimate Aegis, Mirror Knight tricked Belial so Zero can fully charge the Aegis, which destroyed the dark ultra. In the end, he joins Ultraman Zero on the "Ultimate Force Zero".

Part 1
A year after Ultimate Force Zero's last battle with Kaiser Belial, the team encountered a giant planet-sized sphere which kidnapped Jean-bot and Emerana. The remaining three Ultimate Force Zero, Ultraman Zero, Mirror Knight and Glen Fire broke into the sphere and fought it.

Six days later, two ZAP SPACY officers, Rei and Hyuga were on a holiday to Planet Bram until they encountered the same sphere and entered it via a hole that had been made by the Ultimate Force Zero, they found Emerana as she told them what actually happened. Ace Killer, King Joe and Imperializer appeared, and Ultimate Force Zero killed them despite being weakened. Jean-killer was sent to fight the Ultimate Force Zero and they were easily defeated.

Part 2
Emerana ordered Jean-bot to stop as Jean-bot and he does. Zero took Jean-bot away, and he began to regain his consciousness but he had to shut down his system to resist Beatstar's control. As the fighting with Zero continues, before Zero had a chance to defeat Jean-killer, Jean-bot stopped Zero in time and tells everyone that he is his brother, the rest of the team is surprised when Jean-bot try to persuade Jean-killer that living-life forms is the not enemy, as he still under the control of Beatstar he continued to attack Jean-bot and the team.

Emerana arrives and persuades him to open his heart to the truth to make up his own mind, he responds but Beatstar forcefully gains control of him again and he attacks Emerena with beams from his eyes and holds back the team with electric blasts to make them stay where they are, even how much Rei tried to stop her, Hyuga told Rei that they should trust her. She still tries to convince Jean-killer as she believes that Jean-killer has a heart as his attack is missed in countless times to Emerana, He stopped after he saw Emerana's tear, the team is freed and everyone is surprised when they see Jean-killer's tears. Everyone taught him about life, heart and the truth about organic lifeforms not being his enemy. Jean-killer had make up his own mind but Hyuga reminds everyone that is time growing short before sphere will hit the planet.

The Team and Jean-killer destroyed all surrounding Legionoids. Ultraman, Ultraseven and Zoffy arrive to buy them time before the sphere hits the planet. Jean-bot begged Jean-killer to reveal Beatstar's Location Jean-killer told them he's at a half cut moon. The team jump up to the moon and found a several of King Joes and Imperializers. Jean-bot, Glen Fire, Mirror Knight and Rei summoned Gomora to hold them for Zero, so Zero will be able to stop Beatstar. After everything is over Jean-Killer had been renamed by Emerana as "Jean-nine" and Zero had him joined The Team as well. Emerana told Jean-bot to be a good big brother to him. After Ultraman, Ultraseven and Zoffy left to Land of Light, Ultimate Force Zero is ready to save universe again.

Part One
Like the rest of Ultimate Force Zero, Mirror Knight waited for Zero to finish his training in the monster graveyard. After Zero's adventure,he and the rest of the team greeted the Ultra and made their way back to the Living Dimension.

Part Two
Mirror Knight and other Ultimate Force Zero appeared as bronze statues due to Alien Hipporito Jathar but these were duplicates made to trick the Ultra. Later while Zero was being attacked by the Darkness Five (save Alien Hipporoto and Alien Mefilas) and Tyrant, Mirror Knight joined Ultimate force Zero to hold them of while Zero went to rescue Pigmon. Mirror Knight went himself against Deathrog and the other save Zero. After Jean-bot is killed by Zero who had been possessed by Belial to become Zero Darkness, Mirror Knight and the others attacked Zero Darkness. However, all but Mirror Knight was pushed away by Zero Darkness' Dark High Spin. Mirror Knight then grabs Zero Darkness and put all of his powers to copy the same technique Zero had used to purify him once but when the technique almost succeed, Zero Darkness use Dark Energy Slash to slash Mirror Knight's face. Mirror Knight then also meet the same fate like Jean-bot. While Ultraman Zero fells into submission, members of Ultimate Force Zero gives several encouragements to him before departing to afterlife. He was later revived when Zero reversed the time flow and along with other members, escorted his exhausted body.

Ultraman Retsuden
Mirror Knight & the others appear in Ultraman Retsuden Episode 79.