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Kotaro Sakuma (佐久間 小太郎 Sakuma Kotarō) is a young boy who defied Jark Matter's occupation of Earth with his younger brother, Jiro Sakuma. Inspired by Stinger, Kotaro decide to join the Rebellion. He later gains his own personal Kyutama from Shou Ronbou's predecessor, Big Bear to become Koguma Skyblue (コグマスカイブルー Koguma Sukaiburū, lit. Little Bear Skyblue), the eleventh member of the Kyurangers.[1] His alternate form is called Ooguma Skyblue (オオグマスカイブルー Ooguma Sukaiburū, lit. Great Bear Skyblue), though what this form is is currently unknown.

Character History

Meeting the Kyurangers

While the adults refused to defy Jark Matter to make it easier for everyone, Kotaro and his brother refused to accept the oppression, leading to them being caught up in the fight between the Kyurangers and Jark Matter which resulted in the boys being caught by Stinger who, though ordered by Eriedrone to kill them, decided instead to keep them hostage so as to force the eight Kyurangers to surrender their Kyutamas. The brothers' bond reminded Stinger, secretly a Rebellion spy operating within Jark Matter, of that he once had with his own older brother and so he told them to watch out for each other. Ultimately, while Eriedrone intended to kill the brothers regardless, Stinger dropped his facade at the last minute, saving the boys before joining with the Kyurangers to take down Eriedrone, raising the hopes of the previously disillusioned adults. Space.5: 9 Ultimate Saviors

Pursuing the Kyurangers

Some time after the Kyurangers victory, Kotaro follows the Kyurangers actions and locations, even going as far as getting into areas which were under Jark Matter's control. As Garu, Raptor and Stinger headed the last of the five Moraimarz they've taken down, he got caught by the Indaver but was saved by Stinger. He then reveals his intentions to join the Kyurangers to Stinger. Stinger brought Kotaro to the Orion, much to Shou Ronbou's surprise of bringing a kid in. As the Kyurangers were in a dire situation, Shou decided to get into action, telling Kotaro to stay and keep watch of the Orion. He even don't know what was going on when Lucky asks for Pega-san to be sent to them. Space.8: Secret of Commander Shou Ronbou

After the Kyurangers made a hasty retreat, save for Spada, Kotaro still begs Shou to let him join the Kyurangers. He was left behind again when Shou went out alone in the rescue mission and the other Kyurangers finding the commander. After a successful mission and Shou suggesting a new name for the team due to having a 10th member, though rejected by the other Kyurangers, Kotaro still insist that he should be the 11th Kyuranger. This went to the point the Kyurangers were annoyed by his persistent attitude. Space.9: Burn! Dragon Master

Joining the Kyurangers

Kotaro stays behind in the Orion and tries various Kyutamas to see which one was compatible with him, though Champ mentions that in order to become a Kyuranger, the Kyutama has to choose the user. At that time, the Ooguma Kyutama glows. When Lucky brought him back to Earth, Kotaro reveals that he took the Transformation Controller Seiza Blaster with him without the Rebellion knowing, much to Lucky's shock (similar to how Lucky took the blaster and going off with it in the very first episode). Lucky chases Kotaro to get the blaster back but were attacked by Daikaan Mozuma. The Ooguma Kyutama in Kotaro's bag flew to Lucky's blaster, resulting in Big Bear's spirit attacking Mozuma and possessing Kotaro. During their search for Mozuma, Kotaro reveals to Lucky and Big Bear that he decided to become a Kyuranger to be the shining star of hope that will save Earth. He also made this promise to his younger brother Jiro. They found Mozuma and Kotaro attacking them even without an ability to transform. Seeing Kotaro's resolve, Big Bear entrusts the Ooguma Kyutama to Kotaro and the Koguma Kyutama was created. He transforms to Koguma Skyblue, using the scarf to fight and prevents Mozuma from getting away before finishing with an All-Star Crash just in time for the Orion to evade the Sun. After returning to the Orion, Kotaro dons a cyan team jacket as the 11th member of the Rebellion. Space.10: A Small Giant, Big Star!

When learning about the legendary ship Argo and all 3 kyutamas needed for it were on Earth, Kotaro was elated to be part of the operation, though he got disappointed that his kyutama did not come out of the Kyulette. He manages to sneak into the Shishi Voyager, much to the group's surprise. When the team were trapped underground, Kotaro learns from Stinger about his reasons to fight and Scorpio. In the battle against the Deathworm, Kotaro was unsure if he was able to summon a Voyager, though with the encouragement of Stinger, he summons and operates the Kuma Voyager. He uses the Koguma Voyager to save Lucky in time.

Personality

Kotaro has a high sense of bravery, not being afraid of defying Jark Matter. He is also protective of his younger brother and the people dear to him. After seeing the Kyurangers being able to bring hope to others, especially sharing a common brotherhood bond Stinger had whom Kotaro inspired, Kotaro went all the way to follow them, even intending to join the Kyurangers. His wish became true after gaining the trust of Big Bear and creation of the Koguma Kyutama to become Koguma Skyblue.

He calls Hammy 'Old Lady', much to her annoyance. Despite being the youngest member of the team, he has a mature personality and is able to make correct decisions. He also has a strong determination to save Earth as the shining star of hope. However, due to his inexperience in battle and tendency to butt into things without a strategy, he was sometimes a hindrance to the team. Despite that, Kotaro improves himself in fighting against the evil space empire.

Forms

Kyu-skyblue

Koguma Skyblue

Arsenal

  • Kyutama
    • Koguma Kyutama
  • Kyu Buckle
  • Transformation Controller Seiza Blaster

Mecha

  • Kuma Voyager
    • Koguma Voyager

Appearances: Kyuranger Episodes 10-13

74358659

Ooguma Skyblue

Arsenal

  • Kyutama
    • Ooguma Kyutama
  • Kyu Buckle
  • Transformation Controller Seiza Blaster

Mecha

  • Kuma Voyager
    • Ooguma Voyager

Appearances: Kyuranger Episodes TBA

Gallery

           Logo-supersentai Heroes

Himitsu Sentai Gorenger
Tsuyoshi Kaijo | Akira Shinmei | Daigoro Kumano | Daita Oiwa | Kenji Asuka | Peggy Matsuyama

J.A.K.Q. Dengekitai
Goro Sakurai | Bunta Daichi | Karen Mizuki | Ryu Higashi | Sokichi Banba

Battle Fever J
Masao Den | Kensaku Shiraishi | Makoto Jin | Kyousuke Shida | Shirou Akebono | Diane Martin | Maria Nagisa

Denshi Sentai Denziman
Akira Momoi | Daigoro Oume | Ippei Akagi | Jun Kiyama | Tatsuya Midorikawa

Taiyo Sentai Sun Vulcan
Ryuusuke Oowashi | Takayuki Hiba | Kin'ya Samejima | Asao Hyou

Dai Sentai Goggle V
Ken'ichi Akama | Kanpei Kuroda | Saburou Aoyama | Futoshi Kijima | Miki Momozono

Kagaku Sentai Dynaman
Hokuto Dan | Kousaku Nangou | Rei Tachibana | Ryuu Hoshikawa | Yousuke Shima

Choudenshi Bioman
Hikaru Katsuragi | Jun Yabuki | Mika Koizumi | Ryuuta Nanbara | Shingo Takasugi | Shirou Gou | Shota Yamamori

Dengeki Sentai Changeman
Hiryuu Tsurugi | Shou Hayate | Yuuma Oozora | Mai Tsubasa | Sayaka Nagisa

Choushinsei Flashman
Bun | Dai | Jin | Lou | Sara Tokimura

Hikari Sentai Maskman
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Choujuu Sentai Liveman
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Kousoku Sentai Turboranger
Daichi Yamagata | Haruna Morikawa | Riki Honoo | Shunsuke Hino | Youhei Hama

Chikyuu Sentai Fiveman
Gaku Hoshikawa | Ken Hoshikawa | Fumiya Hoshikawa | Kazumi Hoshikawa | Remi Hoshikawa

Choujin Sentai Jetman
Ryu Tendo | Gai Yuki | Raita Ooishi | Kaori Rokumeikan | Ako Hayasaka | Back Dimension Dimensian Soldiers (Dan | Ray | Kanna) | Neo-Jetman (J1 | J2 | J3 | J4 | J5) | Jeffrey Kensaki

Kyōryū Sentai Zyuranger
Geki | Goushi | Dan | Boi | Mei | Burai | Daizyujin

Gosei Sentai Dairanger
Ryo of the Heavenly Fire Star | Daigo of the Heavenly Phantom Star | Shoji of the Heavenly Gravity Star | Kazu of the Heavenly Time Star | Rin of the Heavenly Wind Star | Kou of the Howling New Star | Iron Face Zhang Liao | Previous HououRanger | Previous KirinRanger | Previous ShishiRanger | Previous TenmaRanger | Ryo's grandson | Daigo's grandson | Shoji's grandson | Kazu's grandson | Rin's granddaughter

Ninja Sentai Kakuranger
Sasuke | Tsuruhime | Saizou | Seikai | Jiraiya | Ninjaman

Chouriki Sentai Ohranger
Gorou Hoshino | Shouhei Yokkaichi | Yuji Mita | Juri Nijou | Momo Maruo | Riki | Chief Counsellor Naoyuki Miura

Gekisou Sentai Carranger
Kyosuke Jinnai | Naoki Domon | Minoru Uesugi | Natsumi Shinohara | Youko Yagami | Radietta Fanbelt | Signalman | VRV Master

Denji Sentai Megaranger
Kenta Date | Kouichirou Endou | Shun Namiki | Chisato Jougasaki | Miku Imamura | Yuusaku Hayakawa

Seijuu Sentai Gingaman
Ryouma | Hayate | Gouki | Hikaru | Saya | BullBlack | Hyuuga

Kyuukyuu Sentai GoGoFive
Matoi Tatsumi | Nagare Tatsumi | Shou Tatsumi | Daimon Tatsumi | Matsuri Tatsumi | Kyoko Hayase | Beast-Demon Hunter Zeek

Mirai Sentai Timeranger
Tatsuya Asami | Yuri | Ayase | Domon | Sion | Naoto Takizawa

Hyakujuu Sentai Gaoranger
Kakeru Shishi | Gaku Washio | Kai Samezu | Soutarou Ushigome | Sae Taiga | Tsukumaro Ogami

Ninpuu Sentai Hurricaneger
Yousuke Shiina | Kouta Bitou | Nanami Nono | Ikkou Kasumi | Isshuu Kasumi | Asuka Kagura | Tenkai

Bakuryuu Sentai Abaranger
Ryouga Hakua | Yukito Sanjyou | Ranru Itsuki | Asuka | Mikoto Nakadai | Emiri Sanjyou

Tokusou Sentai Dekaranger
Banban Akaza | Houji Tomasu | Sen'ichi Enari | Marika Reimon | Koume Kodou | Tekkan Aira | Doggie Kruger | Swan Shiratori | Marigold Utahime | Lisa Teagle | Murphy K9 | Omega

Mahou Sentai Magiranger
Kai Ozu | Tsubasa Ozu | Urara Ozu | Houka Ozu | Makito Ozu | Hikaru | Isamu Ozu | Miyuki Ozu

GoGo Sentai Boukenger
Satoru Akashi | Masumi Inou | Souta Mogami | Natsuki Mamiya | Sakura Nishihori | Eiji Takaoaka | Great Sword Man Zubaan |
AkaRed

Juken Sentai Gekiranger
Jan Kandou | Ran Uzaki | Retsu Fukami | Gou Fukami | Ken Hisatsu | Rio | Mele

Engine Sentai Go-Onger
Sosuke Esumi | Renn Kousaka | Saki Rouyama | Hanto Jou | Gunpei Ishihara | Hiroto Sutou | Miu Sutou

Samurai Sentai Shinkenger
Takeru Shiba | Ryunosuke Ikenami | Mako Shirashi | Chiaki Tani | Kotoha Hanaori | Genta Umemori | Kaoru Shiba | Masataka Shiba | Ryuzaburo Ikenami | Kyoko Shiraishi | Kurando Tani

Tensou Sentai Goseiger
Alata | Eri | Agri | Moune | Hyde | Magis | Gosei Knight

Kaisoku Sentai Gokaiger
Captain Marvelous | Joe Gibken | Luka Millfy | Don Dogoier | Ahim de Famille | Gai Ikari

Tokumei Sentai Go-Busters
Hiromu Sakurada | Ryuji Iwasaki | Yoko Usami | Masato Jin | Beet J. Stag | Gorisaki Banana | Ene-tan

Zyuden Sentai Kyoryuger
Daigo Kiryu | Ian Yorkland | Nobuharu Udo | Souji Rippukan | Amy Yuuzuki | Utsusemimaru | Ramirez | Tessai | Doctor Ulshade | Yayoi Ulshade | Wise God Torin | Dantetsu Kiryu

Ressha Sentai ToQger
Right Suzuki | Haru Tokashiki | Mio Natsume | Hikari Nonomura | Kagura Izumi | Akira Nijino | Conductor

Shuriken Sentai Ninninger
Takaharu Igasaki | Yakumo Katou | Nagi Matsuo | Fuuka Igasaki | Kasumi Momochi | Kinji Takigawa | Luna Kokonoe

Doubutsu Sentai Zyuohger
Yamato Kazakiri | Sela | Leo Tusk | Amu | Misao Mondou | Bud | Cetus

Uchu Sentai Kyuranger
Lucky | Stinger | Garu | Balance | Champ | Naga Ray | Hammie | Raptor 283 | Spada | Shou Ronpo | Kotaro Sakuma | Tsurugi Ohtori

Kaitou Sentai Lupinranger
Kairi Yano | Tooma Yoimachi | Umika Hayami | Noel Takao

Keisatsu Sentai Patranger
Keiichiro Asaka | Sakuya Hikawa | Tsukasa Myoujin | Noel Takao

Kishiryu Sentai Ryusoulger
Koh | Melt | Asuna | Towa | Bamba | Kanaro

Other Heroes
Tsukasa Kadoya

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