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"I am not very impressive, in spite of being full of myself.
But I always have my eyes on the future.
I never give up, and I never ever back down.

―Shin Asuka introducing himself to Super GUTS

Shin Asuka (アスカ・シン, Asuka Shin) is the main protagonist of the Ultraman Dyna series, who is the human host of Ultraman Dyna.

After his final battle against Gran-Sphere, the black hole teleported him and Dyna to a gap between universes, but was later revealed in Ultraman Saga he returned to his universe briefly.


Asuka is a kind-hearted, cheerful, and overconfident man. He has a positive attitude toward everything. Sometimes, he will try to do funny and rather immature behaviors to gain the attention of his team members.

His consideration of the unexpected was always lacking. Due to his excellent flying ability, he initially overestimated his strength and took pride in it.

With the development of the series, under the concept of fighting to protect the future of humanity, Asuka's personality has also become serious and steady. Because of this, he has gradually grown into a real warrior. At the same time, due to concerns, he has not revealed to everyone the true identity of Dyna. He concealed his inner doubts with a cheerful expression.

Despite his hot-headed, reckless traits, he can be surprisingly cautious. A major example would be the incident of Yumenokatamari. While everyone, including higher-ups in TPC, was convinced it to be harmless, he was the only one who remained a vigilant eye on it and promptly took action against it once he learned Yumenokatamari was growing.

Since his reappearance in Ultraman Saga, due to the continuous experience of traveling through universes, Asuka's personality is calmer and more mature than before.


Pre-Ultraman Dyna

As a child, Asuka lost his father, another TPC pilot who was investigating an "unknown light". After leaving his old high school baseball team, Asuka joined the TPC as a maintenance crew.

Ultraman Tiga: The Final Odyssey


Asuka's debut as a TPC maintenance worker

Two years after Ultraman Tiga defeated Gatanothor, Asuka salutes the couple Daigo Madoka and Rena Yanase whom later aboard a space shuttle to Mars. Ultraman Tiga: The Final Odyssey

Utraman Dyna

Becoming Dyna

Asuka Squad Zero

Asuka as a member of Squad ZERO

After leaving the maintenance crew, Asuka joined the Air Force Squad ZERO, a division of TPC. As part of the entrance exam, Asuka and his fellows engage in a mock battle in space. They are in older-style GUTS Wings, while Ryo and Kohda are in upgraded GUTS Wing vehicles. As each trainee is hit, they are required to leave the battle. Asuka manages to evade both testers, scoring hits on both of their vehicles. At that moment, a large glowing sphere appears nearby. It splits into multiple smaller Spheres, and begins attacking the nearby space station and the smaller craft. Ryo's weapons jam after taking some damage, but Asuka rescues her. In the process, though, his ship is destroyed, though Asuka manages to get his breathing mask on in time to eject. He sees the sun appear from behind the Earth, and remembers the loss of his father. Suddenly a twinkle of light appears near Asuka. It grows into a large tunnel of blinding light, enveloping Asuka.

Shin Asuka

Asuka in the series

Asuka suddenly awakens in a bed in the new TPC headquarters, tended by the vivacious Mai. He has been accepted into Super GUTS, but must spend more time training after he recovers. While he recuperates, he has two vivid dreams. One involves a large 3-legged monster attacking the Mars colony, which is currently under construction. The other brings him back floating in space, encountering the tunnel of light.

Asuka was later recruited by Super GUTS and dispatched to the TPC Mars Base's defense against Darambia. After accidentally injuring Kouda and crashing GUTS Eagle Alpha, he assaulted Darambia on foot but no avail.

Suddenly, he is surrounded by a nimbus of light. He panics, but soon his body begins to grow. The light solidifies into a large Ultraman figure. Some of the older members of the TPC contingent in the colony believe it is Ultraman Tiga, returned and renewed. The elder officers, however, realize that it isn't Tiga, but may be another guardian like him. A New Light (Part 1) Asuka as the Ultraman faces Darambia and finally defeats him.

Recruitment into Super GUTS

After the Darambia assault, Asuka was lectured by Captain Hibiki and felt humiliated of his behavior. Soon, when Giralen, another monster created by the Sphere attacks the Super GUTS Base, Asuka transforms into the Ultra once again and finishes the monster with Revolium Wave. After witnessing the whole battle, Mai, the team's operator decides to name the Ultraman as Ultraman Dyna. A New Light (Part 2) Later, after his fight as Dyna with Grossyna, Asuka becomes albeit mature, realizing fully his responsibilities as a Super GUTS member, and as the human host of Ultraman Dyna and confronted many memorable monsters of this 51-episode series, including: Daigerun, Monsarger, Garaon, Sildron, Neosaurus, Sadom, Gaigeried, Neo Geomos, and many more. Many of these monsters taught Asuka lessons and gave memories to the young-adult, who began his motto "Never give up!"

A new friend, Hanejiro

While on a mission to Planet Meranie, Asuka and Nakajima encountered an alien Mukkito, whom led them to the control room of the planet. The scheme was uncovered, and Mons-Ahgar was released. While Nakajima escaped, Asuka was trapped under stone and had his Lieflasher away where he cannot reach it. Hanejiro then gave the Lieflasher to Asuka, allowing him to transform. Later, after Ultraman Dyna defeated Mons-Ahgar, Hanejiro was trapped on the imploding planet and was rescued by Dyna and taken aboard the GUTS Eagle, where he was named the Super GUTS mascot and also renamed Hanejiro, which Asuka later addressed him as a friend/pet. The Phantom Shooting Star

The Invasion of Alien Monera

While as Dyna, Asuka battles Geranda on the moon along with Super GUTS on their GUTS Eagle Alpha and Beta. Both monster and Ultra seemed evenly matched in strength and abilities, until Geranda was destroyed by a mysterious battleship.

Dyna incinerated

Dyna destroyed by Deathfacer (Asuka's vision)

Img 1208924 37063125 8

Asuka inside the Prometheus' capsule.

Upon returning to Earth, the Super GUTS team were called to a secret island base stationed on Coreomoes Island (first debuted in Ultraman Tiga). Here they discover that TPC is also responsible for building the space-battleship. The ship known as Prometheus, and its devastating main weapon is the Neo-Maxima Cannon which was once used in the original GUTS' Artdessei. The project leader, Dr. Kisaragi, explains that Super GUTS has been summoned so that their brainwaves can be used to give real-battle experiences to the battle computer of Prometheus, making it an even more effective weapon. Asuka doubts that Prometheus can ever be as effective as Dyna at defending the Earth. He accepts the challenge, and enters the capsule. Before entering, Dr Kisaragi also calls him "Dyna", provoking his awareness before his memories being uploaded into the battleship. There, Asuka also witness the ship's previous battle with Geranda and surprisingly, the ship also fires the Neo-Maxima Cannon at Dyna. Though the giant tries to repel it with his Solgent Beam, it failed thus reducing him into dust.

Deathfather v Ultraman Dyna

Dyna vs Deathfacer

When Asuka regains consciousness, the base is attacked by an alien spaceship, with energy waves identical to that found from Geranda, and Asuka transforms into Ultraman Dyna to face the alien UFO. Prometheus is also launched, but to destroy Dyna, not assist him. Dr. Kisaragi announces that both she and Prometheus are under the control of the alien race known as the Monera. Prometheus, mollusionized into Deathfacer, is able to anticipate and counter all of Dyna's moves due its knowledge of the Ultra based on Asuka's brain scan result. The one-sided battle ends when the robot proceeds to fire his Neo-Maxima Cannon at Dyna, but the Ultra, having experienced the nightmare of him perished by the giant laser managed to evade, leaving a large crater on the island. Dyna disappears and is presumed dead.

While Super GUTS regroups and finds out that they have all survived, including Asuka, however, Mai was wounded gravely for not being able to escape the base fast enough, with the battle caused Asuka to lose his confidence. After talking with the original GUTS leader, Captain Iruma, Asuka regains his confidence and transforms into Ultraman Dyna, and while doing that changes Dyna to Strong Type. This time, Dyna is ready for Deathfacer and finally defeats Deathfacer by driving his fist through Neo-Maxima Cannon when it does 'pre-shoot charging sequence'. Dyna then throws unstable Deathfacer into the air, before it explodes. However, the Monera fuses themselves with their spaceship to form the gigantic Queen Monera which captures Dyna and instantly devastates the city. Dyna tries to escape, and Super GUTS, as well as Captain Iruma, try to aid, but Dyna's energy is drained completely and his timer runs out, dying.

However, the brief returning of Ultraman Tiga, revived Dyna and finally defeated the monster with attacks. Afterwards, Tiga salutes Dyna as they fades together and disappear. The entire Super GUTS reunite to celebrate their victory against the monster. At the end, Mai recovers from the previous destruction of the Coreomoes Island and flies to the moon with Asuka as a passenger. Ultraman Tiga & Ultraman Dyna: Warriors of the Star of Light

Loss of a friend

Hanejiro's people, the Alien Fabiras, has became frustrated from their previous attempt to inhabit Planet Miranie failed along with the loss of Mukkito and has decided to use force and take away Earth. However, due to Hanejiro's projection of the laughter he shared with the Earthlings, Alien Fabiras B learned that one cannot take back Laughter nor peace with force. However, Alien Fabiras A, under the influence of the Magical Stone from Planet Muzan, turned giant-sized and fought Asuka/Ultraman Dyna, and Dyna was only able to defeat the giant after Hanejiro showed Dyna were the Magical Stone was, with the Ultra brought the stone away via Revolium Wave. However, after the fight, Alien Fabiras B announced Hanejiro's decision: To be with the Fabiras again and help them endure their life of drifting. Asuka/Dyna bitterly bids farewell to Hanejiro. Farewell Hanejiro

Kidnapped and the Creation of Terranoid

After a battle with Neo Darambia II, Asuka's secret identity was discovered and he was kidnapped with Ryo to the secret underground base of TPC. There, Chief of Staff Kihachi Gondou revealed his desire for the restarting of the infamous Project F, the plan based on Keigo Masaki's action that created his own Ultraman (Evil Tiga, which also appeared in Dyna's series as a member of the Phantom Monster Army). The goal of this plan was to create Ultramen as living weapons at mankind's beck and call. Soon Gondo used his life-force extraction device to use Shin's energy to power his Ultraman statue: Terranoid (Read the Terranoid article for more of this arc). Terranoid was later defeated and morphed by the Spheres into Zeluganoid. Shin then risked his life and transformed into Dyna one more time to fight the beast. After defeating Zeluganoid, Dyna disappeared with it and Shin was later found by Daigo, who was part of the TPC MARS program. Once in Daigo's shelter: The Bio Park, he was nursed back to health by Rena and was talked to by Daigo, including the responsibilities of being an Ultra. Soon, he returned to Earth with Ryo to plan for the "Defense Against Gran-Sphere" campaign. Final Chapter I: A New Shadow

Three-Part Arc: The Final Chapter and Disappearence

Goodbye Asuka

Asuka sucked into the wormhole as Dyna

Back on Earth, Gran-Sphere began to attack, with the first strike being the devouring of Pluto. Super GUTS was alarmed and created a plan to stop Gran-Sphere by Saturn. The moveable base: Clarkov NF-3000 was employed in the battle, as well as the Frozen Weapon: Neo-Maxima Cannon (originally used with Deathfacer). Unfortunately, the plan failed and Saturn was devoured, along with the Man-Made Sun. At long last, a new plan was created for Gran-Sphere to be stopped at Mars, and that was when Asuka finally revealed he was Dyna all this time. The plan was for Super GUTS to use the Neo-Maxima Cannon to blast Gran-Sphere, creating a hole. Dyna will then fire his Solgent Beam into the opening. The plan proceeded, and Gran-Sphere was defeated. Unfortunately, the defeat of this beast would involve in the opening of a wormhole of a gap between dimensions, which Shin was sucked into. The stars returned, and a new worm hole opened to the Land of Light, in which Super GUTS advanced to. Asuka was then seen in the gap, flying with his lost father, into a light of foreverness. Final Chapter II: Solar System Annihilation Final Chapter III: Toward Tomorrow...

Ultraman Tiga, Ultraman Dyna, & Ultraman Gaia: The Decisive Battle in Hyperspace


While not making any physical appearance to speak of, Asuka was mentioned by Tsutomu Shinsei, along with Daigo Madoka, when the boy was talking about who his favorite Ultraman Series protagonist of was at the beginning of the film.

When King of Mons and his monster subordinates almost killed Tsutomu and his friends, Tsutomu used the Red Sphere to fulfill his desire to save Ultraman Gaia and to defeat King of Mons. The boy's wish was granted in the form of Ultraman Tiga as well as Ultraman Dyna who both teamed up with Gaia. Along with Tiga and Gaia's human host Gamu, Dyna disappeared out of Tsutomu's world after it was wished for the Red Shpere's non-existence. Ultraman Tiga, Ultraman Dyna, & Ultraman Gaia: The Decisive Battle in Hyperspace

Mega Monster Battle Ultra Galaxy: The Movie

Shin reappears to help the crew of the Pendragon defeat parts of Belial's Army: Alien Zetton and Nurse. After defeating Alien Zetton in hand-to-hand combat, Shin was introduced to the crew as a traveler before defeating Nurse and as Dyna agreed to take the Pendragon crew to the Monster Graveyard, went straight to take on Belial. After being knocked down by Belial for a bit, he witnessed the arrival of Ultraman Zero and later worked together with Leo, Astra, Zero, Ultraman, and Mebius to take down Belyudra. After leaving the Graveyard, he agreed to take the Pendragon crew back to the Solar System. Mega Monster Battle Ultra Galaxy: The Movie

Ultraman Saga

As he continue his journey a year after the last battle with Ultras from M78, Shin as one of the protagonists and ask a favor help from Ultraman Zero and Ultraman Cosmos and also who merged into the titular hero to defeat Hyper Zetton. Shin was known by the kids who said that he was really fun to play with. Many of Team U's members were fond of him with Lisa appearing to have feelings for him. At some point in the past he transformed into Ultraman Dyna to protect them from Hyper Zetton (Gigant) and Alien Bat. Dyna sealed the monster inside his cocoon using up all his energy and becoming a statue. Fortunately he expelled the Lieflasher which stored energy to revive the two at a later point at which point they saved Ultraman Zero who they had called from another universe to help.

Ultrmn shn Ask sgs

Asuka briefly reunited with his comrades

After the battle's conclusion, Asuka contacts Super GUTS while traveling to an unknown destination, informing them that Taiga is alive and well. Ryo promises Asuka that they will catch up to him one day, and Asuka smiles, giving a thumbs up, saying that he will be waiting for them before continuing his journey through space. Ultraman Saga (film)

Ultraman Ginga

Prior to the Ultraman Ginga television series, Asuka as Ultraman Dyna participated in the Dark Spark War but this time he fought not only himself but, with the other Ultras that appeared in other series. In the midst of their battle, Dark Lugiel turned every Ultras alongside their allies, Kaiju and aliens into Spark Dolls. It was then an unknown warrior appeared and faced Dark Lugiel but like others he also turned into Spark Dolls but he was kept within his Ginga Spark and fell alongside other Spark Dolls to Earth it is unknown whether Dyna was lost in the town or was kept by Dark Lugiel as his collection. Town of Falling Stars

At the conclusion of the series, Dyna is presumed to have returned to original form and left Earth with the other Spark Dolls for space. Your Future

Ultraman Ginga S The Movie: Showdown! The 10 Ultra Warriors!

Asuka as Dyna are seen with other 6 Heisei Ultras (save Zero), being trapped into a mirror that is created by Arena after being defeated by Etelgar during his journey through the universe (offscreen). After being freed by UPG and Musashi, he bestowed his power with the other Heisei Ultras to Hikaru in order for him to transform into Ginga Victory with Shou. He then witnessed the revival of Five King that reminded him about the monster that was killed by him (and trauma, in Asuka’s case is Reicubas) combined with four others and faced him with Tiga and Gaia. After a fierce fight, He changed into Miracle Type and destroyed Five King with a combination effort of Tiga Power Type and Gaia Supreme Version. He then continue his journey through the universe and dimension. Ultraman Ginga S The Movie: Showdown! The 10 Ultra Warriors!


Shin Asuka reappeared in this series along with Ultraman Dyna. Ultraman Orb THE ORIGIN SAGA


Great Decisive Battle! The Super 8 Ultra Brothers


Asuka with the Ultra Brothers in human form

An alternate reality version of Asuka was childhood friends with Daigo and Gamu, who grew up to be a baseball player, however when his team lost, he gave up on his dream.

Later on, after Daigo talked about alternate universes where they and others they knew were Ultras, Asuka had a dream of himself being an Ultra named Dyna.

After the defeat of Ultraman Mebius, and while Daigo fought the monsters as Tiga, Asuka and Gamu transformed into Dyna and Gaia to assist their friend. With the help of the four Ultra Brothers and the revived Mebius they were able to save their world.

Asuka later returned to playing professional baseball, and eventually took a trip with others and his girlfriend to Nebula M78. Great Decisive Battle! The Super 8 Ultra Brothers


Lieflasher: Asuka thrusts the Lieflasher into the air, then shouts Dyna!, it then unfolds and transforms him into Dyna.

Powers and Weapons

  • Superhuman Feats: After merging with Dyna, Asuka showed superhuman abilities. Some of them are enhanced durability and strength.
  • Piloting skills: Asuka was one of the best pilots in his trainee squad. He was even able to outmatch Ryo in certain cases.
  • Teleportation: In Mega Monster Battle Ultra Galaxy: The Movie Asuka was able to teleport via a bright flash of light.
  • Telepathy: After merging with Dyna, Asuka is able to communicate telepathically with others.
  • Lieflasher: Asuka can use this device to transform into Ultraman Dyna.


  • Asuka is the first human being to not meet an Ultra but got its powers.
  • Asuka's well-known motto is "Never give up", stemming from his character development as his series progresses. 
  • The original concept behind Shin Asuka is to have him as a baseball player but this was less focused due to Takeshi Tsuruno having intermediate experience as a baseball player.
  • Like Daigo Madoka, all of Asuka's stock footage appearances in Ultraman Chronicle Z: Heroes' Odyssey have been completely cut out. Although rumors of his actor misbehaving circulated, no real confirmation was given as to why this happened. Said rumors also resulted on TV Tokyo (the channel that airs the biography series) requesting Tsuburaya to cut said scenes of him until the 16th episode, "ULTRA HIGH".
    • The "Seize the Light! Ultraman Dyna" storybook published by Kodansha retains the still images of Asuka.
    • In the 11th episode (Warriors of the Star of Light Part 1) of the Ultraman Chronicle Z: Heroes' Odyssey, Tsuruno's grunts are kept, but the screaming sound effect where Dyna was hit by Deathfacer's beam has been removed. His on-screen appearances as Asuka are also cropped off.
    • The rebroadcast of I Want to See Our Earth for Ultraman Foundation's Spring Special Campaign, and the TBS reairings of the show is uncut, showing Asuka on-screen.
Human Hosts and Forms
Showa Hosts Shin Hayata | Dan Moroboshi | Hideki Go | Seiji Hokuto | Yuko Minami | Kotaro Higashi | Professor Ohtani | Shuuhei Aragaki | Tetsuya Kitajima | Tadao Nanbara | Takashi Ueno | Gen Otori | Choichiro Hikari | Kyoko Kodaka | Takeshi Yamato | Ryoko Hoshi | Scott Masterson | Chuck Gavin | Beth O'Brian
Heisei Hosts Jack Shindo | Dan Moroboshi (Heisei Ultraseven) | Kenichi Kai | Masaki Kazamori | Genki Kagura | Mysterious Girl | Shin Kenmochi | Agent Sean | Masato Usami | Katsuto Asahi | Daigo Madoka | Tsubasa Madoka | Amui | Shin Asuka | Gamu Takayama | Hiroya Fujimiya | Ginga Yumeboshi | Musashi Haruno | Julie | Shunichi Maki | Jun Himeya | Ren Senjyu | Nagi Saijyo | Kazuki Komon | Kaito Touma | Ikuo Hasunuma | Mirai Hibino | Kazuya Serizawa | Ryu Aihara | Shingo Sakomizu | Jin | Run | Nozomu Taiga | Hikaru Raido | Sho | Daichi Oozora | Sayuri Tachibana | Yuuto Tamaki | Gai Kurenai | Riku Asakura | Leito Igaguri | Katsumi Minato | Isami Minato | Rosso | Blu | Asahi Minato
Reiwa Hosts Hiroyuki Kudo | Haruki Natsukawa | Kengo Manaka | Ribut | Ignis | Shinji Kaminaga | Kanata Asumi | Decker Asumi | Dinas | Gento Hiruma | Yuma Hize
Evil Ultra Hosts Keigo Masaki | Riko Saida | Shinya Mizorogi | Hiroyuki Misawa | Mitsuhiko Ishibori | Soso | Utsuutsu | Arie Ishikari | Makoto Aizen | Kirisaki | Zabil
Other Ultraman Media Takeshi Yoshioka (Hyperspace) | Ikuru | Shin Moroboshi | Kazuma Asuka | Akiko Fuji (Ultraman F) | Shin Hayata (Marvel) | Dan Moroboshi (Marvel) | Lili Archive | Ken Sato | Hayao Sato
Other Hosts Takeshi Hongo | Kyotaro Kagami | Officer Sakomizu | Goro Kirishima | Yuji Hayase | Tetsuo Hayase | Lily Hayase | Daisuke Misaki | Naoki Tachibana | Kochan | Ai Tachibana | Zen Tachibana | Toki Goh | Naoto Sho | Takeshi Todo | Ippei Baba | Yuka Inoue | Mai Midorikawa | Sam Collins | Ai Kumashiro | Akira Kageyama | Rei | Nao | Tomoya Ichijouji | Daisuke Misaki (Glenfire) | Amate | Yuta Hibiki | Hikari Kaizaki | Chloe