Daigo Madoka

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 is a member of the Earth defense squad, GUTS, who was able to transform into the Ultra-Ancient Giant of Light, Ultraman Tiga, due to him possessing genes of the Ultra-Ancient Civilization from 30 million years ago.
==Conception==
===Etymology===
During production, the name "Daigo" was devised by the series' producer, Hiroyasu Shibuya.
In the TV series, the positioning of the name "Daigo" as either a first or last name remained quite ambiguous until the final episode. After the show concluded, Hiroyasu Shibuya suggested using a name from Tsuburaya Productions, ultimately deciding on "" as his last name. This name was first revealed in Ultraman Tiga: The Final Odyssey.https://twitter.com/dinahasegawa/status/1782712777729364193
==History==
===Pre-Ultraman Tiga===
Before he was recruited for GUTS by Souichiro Sawai, Chief Officer of TPC, Daigo was working with the TPC transportation division when he saved the TPC leader from abduction by aliens. Since then, he worked with the elite rescue team. 
===Ultraman Tiga===
Daigo first appears with Rena in the GUTS Wing in Mongolia watching Golza rise out of the Earth. With their ship only being a rescue vehicle they used what they had readily and drove Golza away from a village with smoke flares. Golza retreated for unknown reasons but the two could not follow him as they were called back to base. An meteorite had crashed on Earth and was determined to be hollow. GUTS was called to handle the examination along with a scientific expert. Eventually the meteorite was revealed to house Yuzare's time capsule returning to Earth thirty million years after it launched to the predicted time when great disaster would befall its people again. Everyone was surprised by the hologram and its prophecies of Golza, Melba and the need for them to revive the giant Tiga. However, Daigo was initially the only one willing to believe in a Ultra-Ancient Civilization but after carbon dating showed the time capsule was genuine and Melba's revival on Easter Island, GUTS was forced to take her words seriously.
Following the hologram's words and Yazumi's genius, they found the Pyramid of Light in the region formerly known as the land of Tiga. Daigo was drawn to the statues within, as he heard voices in his head. Instinctively knowing how to get in, he walked through the walls to find the statue of Tiga and two others of his fellow Ultras, most likely comrades in arms. Despite his teammates' warning Daigo touched the statue, somehow calling to the Ultra-Ancient DNA inside him. Daigo heard screams of people dying genetic memories of the ancient cataclysm surged up with in him.
Daigo and the others had no time to figure out how to revive Tiga however as both monsters were drawn to the resting site of the ancient protectors. In the advent of Golza's and Melba's attack on the statues, Daigo fought bravely but his GUTS Wing was shot down. About to crash, Daigo was turned into light after which he was absorbed into the only remaining statue, becoming Tiga for the first time. With Tiga now awakened, he defeated Melba and forced Golza to retreat.
Returning to the base, he had a conversation with the program version of Yuzare, he was able to hear thanks to his ancient DNA. She explained his ancestry and how her civilization was destroyed as well as the nature of the Ultramen. She explained to him how he was both human and light as he bore the DNA of the Ultras.
Since then Daigo fought many monsters and met many non-human individuals, despite his superhuman power, Daigo valued his humanity above all else and fought with it, touching certain individuals of ancient or aliens origins. However Daigo eventually came to face his opposite, an individual who shared his Ultra-Ancient DNA, but sought only to discard his humanity in exchange for the power of an Ultra, Keigo Masaki, who decided to attack him using Geozark so that he could steal the Sparklence. With it, Keigo mocked Daigo's resolve and transformed into Evil Tiga using another stone statue. Forcing his way through the barrier, Daigo retrieved the Sparklence once more and fought Evil Tiga, now having gone berserk due to his lack of a pure heart when Keigo turned into light. However, Tiga was too late to protect Guardie, who died attempting to stop his former master.
With the emergence of Gijera, the genes inside Daigo gave him another memory - one of the destruction of the Ultra-Ancient Civilization by a great darkness. After everyone else seemed to succumb to the effects of Gijera's pollen, Daigo learned from Nook and Terra that Gijera's blooming signaled the time of destruction, and that humans were likely to accept Gijera's false utopian reality granted upon them rather than having to struggle against the upcoming darkness. Nook also told him that in the past, Tiga and the others did not interfere with humans' decisions, and had to leave them to die.
At first Daigo was conflicted as to what to do, and then he remembered that Yuzare told him that he was human, and light. He took this as a way of telling him to do what was right, and transformed into Tiga to destroy Gijera. However, as both Nook and Terra were kept alive by an extract of Gijera's pollen, they died but they thanked Tiga for standing up to the destruction.
It was some time later that Daigo began to experience nightmares similar to the vision he first saw when he looked at the Gijera flower for the first time. It was the memories in his DNA acting in response to the coming apocalypse leaving Daigo aware he would soon have to face the great evil that ended the Ultra-Ancient Civilization. It was also at the same time that Rena noticed Daigo was keeping a secret from and the rest of the team. She had deduced that he was Tiga, but choose to keep that to herself. After some time of giving him the cold shoulder, she finally confronted him during their pursuit of Zoiger into the upper atmosphere. Demanding to know why he felt he had to fight alone, Rena convinced Daigo to reveal his secret to her and transformed, together they brought down Zoiger and Daigo as Tiga ended the ancient evil. However, while it seemed a victory, both literally and for their relationship, they were soon alerted that other Zoigers were appearing worldwide; the prophesied calamity was soon rising.
Rena and Daigo returned to TPC HQ to find that a wave of darkness, both literal and metaphorical was ravaging the world. It was originating from R'lyeh, the same underwater domain that Zoiger was first spotted, only now it was rising. The same wave of darkness was now converging on TPC base forcing the General-Chairman to order a complete evacuation. As the TPC staff and GUTS left to board the Artdessei airship, Daigo stayed behind in the command room as the darkness began to surround it. While Rena called on him to leave with them, Captain Iruma revealed her suspicions of Tiga's identity and effectively told Daigo to do what he had to. As the rest of GUTS left on the Artdessei, Daigo transformed and flew off to face the Great Darkness who ended the Ultra-Ancient Civilization, Gatanothor. While his friends watched from a distance due to the field of darkness Daigo faced the evil god, first in Multi Type and then Power Type, but his power was insufficient and in the end Tiga was turned back into a statue.
During this time as his friends searched for a way to revive him, Daigo was telepathically contacted by the Kyrieloids, who mocked his predicament before leaving the Earth. Refusing to give into despair Daigo held fast in his belief that his friends would help him, indeed they did or at least tried. GUTS recruited Keigo Masaki because of his expertise on Ultra Statues and used a device of his design to attempt to revive Tiga. Despite their attempt, Gatanothor interfered. However another source of light came to Tiga, the children of the world refused to give up and their shared conviction created a massive Nexus of Souls, they all became beings of light which merged with the Tiga statue, reviving him as Glitter Tiga. 
With this new power, the children of the world, Daigo and even Rena overpowered Gatanothor and destroyed him canceling the prophesied destruction indefinitely. However the battle was not without its costs. Upon reuniting with Rena in human form, Daigo showed the Sparklence which had turned to stone, the ancient device crumbled in her hand. Later, Yazumi took a souvenir picture for their group.
===Ultraman Tiga: The Final Odyssey===
Two years after Tiga's final battle, Daigo is approached by a mysterious woman, Camearra, who invaded his dreams and harassed Daigo. This started to create a rift between Daigo and Rena, who didn't want him to keep secrets and bear burdens on his own like he did during his time as Tiga. However, while going back to the GUTS base to investigate, Daigo was beaten up by the human forms of the Giants of Darkness, and was granted the Dark Sparklence. Daigo dreamed of the Ultra-Ancient ruins and Yuzare told him about Tiga's past as a Giant of Darkness. Soon awakening, Daigo put on his GUTS uniform once again to face the Giants of Darkness, convinced that humans are able to turn into light of their own will, despite being told by Yuzare in a dream that if he transformed into Tiga Dark, the pyramid barrier she placed over R'lyeh would disappear. 
With his former teammates and Rena, they decided to go to R'lyeh to confront the Giants of Darkness. Daigo transformed into Tiga Dark to fight them, and absorbed their powers to gain his own Type Changes. After killing both Darramb and Hudra, Tiga faced Camearra and regained Multi Type by protecting Rena from Carmearra. Enraged, she turned into Demonthor and killed Tiga. However, the dormant light from the deceased Giants of Light in the ruins revived Tiga as Glitter Tiga, who defeated Demonthor. In the aftermath, Daigo found Camearra dying, saying that she wanted the light too.
Daigo then went back to Rena and got married. Some time later, while departing to Mars, Daigo passed by Shin Asuka, who he recognizes as his successor. 
===Tiga, Dyna, and Ultraman Gaia Novel: The Adventure in Hyperspace===
In the sequel novel to Ultraman Tiga, Ultraman Dyna, & Ultraman Gaia: The Decisive Battle in Hyperspace, it was explained that the Tiga that was summoned by Tsutomu to assist Gaia and defeated Sculla was indeed Daigo, who eventually lost his memory when the first Red Sphere vanished and return him to his world. When Tsutomu traveled to the Neo Frontier Space World during the events of Ultraman Tiga: The Final Odyssey, Daigo regained his memories and lead the GUTS members in Artdessei as he joined forces with Asuka/Dyna and Super GUTS in assisting Gaia during his fight with Charija's monsters. 
===Ultraman Dyna===
Daigo Madoka appeared in episodes 50 and 51 of Ultraman Dyna when Asuka was lost on Mars after his battle with Terranoid. Daigo rescued him from the Martian dunes and brought him to his bio-dome where he met his family. At this point Daigo and Rena had a daughter, whom they named Hikari, and were working as biologists on a project to grow crops on Mars. 
Upon awakening Daigo had a talk with Asuka on the responsibilities of being an Ultra and he and his family looked after him until Super GUTS arrived. Later, after Dyna was sucked into a wormhole, Daigo is seen in his damaged garden musing aloud that he wished Asuka good luck, somehow knowing he was still alive. 
===Ultraman Tiga Gaiden: Revival of the Ancient Giant===
Daigo is not seen in this side story but his second child, his son Tsubasa mentions him when explaining the Bronze Sparklence. 
==Counterparts==
===Dark Horse Manga===
Daigo appears in manga form in the Dark Horse Ultraman Tiga manga.
===Great Decisive Battle! The Super 8 Ultra Brothers===
An alternate reality version of Daigo was childhood friends with Shin Asuka and Gamu Takayama, and was engaged to Rena Hayata. He began experiencing visions including the Ultra Brothers, he soon met Hibino Mirai (Ultraman Mebius), who came to his world to investigate a potential threat.
After Mebius is turned to bronze by Alien Hipporit, Daigo gains his counterpart's memories as an Ultra from another world and the Sparklence materializes in his right hand. He transforms to fight the monsters threatening the city. When Hipporit traps him, Asuka and Gamu transform into Dyna and Gaia respectively and free him. Later, the trio are joined by Ultraman, Seven, Ace and Jack, and they gained victory over the darkness.
Daigo soon marries Rena like the original Daigo did and had a daughter. Together with the others, they travel to Nebula M78. 
==Profile==
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Daigo usually uses a device called the Sparklence to transform, but in near death situations, he is able to transform without it.
According to the hologram of Yuzare, Daigo has the "power to become light" embedded in his genes since ancient times, passed down from the days of the Ultra-Ancient Civilization from 30 million years ago. It is implied during their first conversation and heavily in Final Odyssey, that Daigo is in fact the reincarnation of the original Tiga, who was once a warrior of evil but turned to the light after being convinced to turn back to the light by the original Yuzare. This is supported by the fact that Camearra, Tiga's former lover, immediately recognized him in human form, implying he is identical in appearance to the original Tiga's human form.
Also, as stated by the Yuzare program in episode 2, the two are one being, Daigo is different from most Ultra Hosts/human forms, in that he is neither a human assimilated with an Ultra or an Ultra taking on a human form, Daigo is an otherwise normal human being who has the ability to transform into an Ultra, which is also his biggest weakness. Like other Ultras, who have the M78 three minute rule, Daigo is powering his Ultra form by the light he turns into and the light his body can absorb like any Ultra, meaning he can only stay in Ultra form for three minutes on Earth, although he seems to have more flexibility in space. Also any injuries he carries in human form carry over to his Ultra form and Vice versa. During a few episodes when Daigo's hand was injured, every time he transformed he checked his hand to see if it was in fighting condition. It was shown after his fight with Geozark that Daigo was immediately tired after transforming back into human form. Outside of his ability to transform into living light/an Ultra, Daigo is a normal human being as has been shown several times in the series.
:;Transformation
:;Powers and Weapons
*Combat Training: As a member of GUTS, Daigo is trained in combat and the use of high tech arms.
*Pilot Training: As a member of GUTS, Daigo is trained in the handling of their machines and vehicles.
*Ultra-Ancient DNA: Daigo possesses Ultra-Ancient DNA giving him certain abilities. Beyond these few powers he is otherwise a normal human being.
**Light Transformation: During times of extreme duress, or near death experiences, Daigo has shown the ability to transform into pure light similar to Ultras. This ability, when first discovered allowed him to merge with the Tiga Statue and ever since then, it has been an alternate way of transforming into Tiga.
**Sparklence: Using the Sparklence, Daigo can transform into Ultraman Tiga at will.
**Darkness Resistance: Because of his Ultra-Ancient DNA, Daigo is resistant to the power of darkness. The vampire monster Kyuranos didn't attempt to turn him, sensing that it would be pointless. He was immune to Gijera's pollen and survived in Gatanothor's darkness.
==Trivia==
*According to an interview with then-president of Tsuburaya Productions, Kazuo Tsuburaya, he stated that the decision to appoint Hiroshi Nagano in the main cast is to invoke the image of a youthful protagonist.
*In the initial series proposal, Daigo's appearance was described as a "handsome young man in the Johnny style." As a result, MBS producer Yoshihiko Marutani asked Tsuburaya Productions whether they had communicated with Johnny & Associates, but they stated they had no way to contact Johnny & Associates. Marutani then asked a friend he knew to inquire with Johnny & Associates about borrowing one of their entertainers. Johnny & Associates recommended Hiroshi Nagano from V6 based on the character's image and setting.Ultra Tokusatsu Perfect Mook vol.03 Ultraman Tiga pg 4-5 The selection was made with the assistance of Julie Keiko Fujishima."The wonderful world of fantasy special effects footage: Ultraman Tiga" pg 41
*Daigo is:
**The first instance in the Ultraman Series of a human being with Ultra Genes/biological relations to an Ultra. Due to this, he gains superhuman abilities despite not being an actual Ultra.
**The first human host to transform and control his Ultra counterpart. This makes him the opposite of Dan Moroboshi in that instead of being an Ultra in human form he is a human that turns into an Ultra.
**The second Ultra Host to show their transformation item to the members of the defense team, the first was Dan Moroboshi.
**The first known Ultra Host whose Ultra form runs in his family. Before him, his ancestor Amui wielded his own Sparklence and channeled the power of Tiga. His son also wielded Tiga's power, if only partially and Daigo is suspected to be a descendant of the original Tiga.
*It is revealed that Daigo used to receive bad marks in physics. 
*There are several episodes of Ultraman Tiga where Daigo suffered injuries or diseases which were thought to be a part of the script but in truth, these were actual injuries that his actor, Hiroshi Nagano, had received:
**In episode 15 and 16, he suffered from an injured left hand after Tetsuo Shinjoh accidentally crash-landed their GUTS Wing near the beach of Kurara Island. Originally, Daigo was meant to have been injured one of his legs, but Nagano had injured his hand before the shooting took place.
**In episode 38, it was scripted that Daigo would be infected with a fever. Coincidentally, Nagano did have a fever at that time.
*Daigo was meant to return in Ultraman Tiga & Ultraman Dyna: Warriors of the Star of Light and Ultraman Tiga Gaiden: Revival of the Ancient Giant but was never made it in due to his actor having trouble with a scheduling conflict. Because of this, his children came into conception to replace him instead (Hikari Madoka in the movie and Tsubasa Madoka in the Gaiden).
*Starting from 2021, almost all of Daigo's appearances in stock footages (Ultraman Chronicle Z: Heroes' Odyssey) and several published books (such as the "Revive! The Giant of Light - Ultraman Tiga" story book) have been completely cut out or omitted, due to the issues regarding Nagano's agency.
==References==
id:Daigo Madoka
Category:Human Hosts
Category:Male Characters
Category:Heroes
Category:GUTS
Category:GUTS Members
Category:Ultraman Tiga
Category:Ultraman Tiga Characters
Category:Protagonists