This article is about a/an ranger in Kishiryu Sentai Ryusoulger.

Seto (セトー Setō) is a mysterious hooded ally of the Ryusoulgers. After Naohisa Tatsui dug into his temple, he uses his body to communicate with the other Ryusoulgers, though the possession is only temporary. Seto later becomes Ryusoul Brown (リュウソウブラウン Ryūsō Buraun) to aid the Ryusoulgers in the final battle against Eras. He later seperated from Naohisa and presumably either died or went back to his slumber.

Character History

Hooded Seto in the Opening theme song


to be added

Powers and Abilities

Unlike the other Ryusoulgers, Seto lacks the usual power and finesse in fighting despite becoming Ryusoul Brown. He largely blames this on the elderly body that he inhabits during the series. He can transform into Ryusoul Brown at his will without using the Ryusoul Changer and RyuSoul. In the only fight he took place in, he largely took a supportive role to the best of his abilities. He distracted Pricious with childish tricks long enough to allow Koh to break the barrier, and with the other Ryusoulgers he used several different RyuSouls to complement their attacks.


to be added

Ryusoul Brown




  • to be added


  • to be added

This Form is Exlusive to Episode 46.

Behind the Scenes




  • Seto seems to be the antithesis of EvoltoIcon-crosswiki.png from Kamen Rider BuildIcon-crosswiki.png as both are spirits who possessed the first personsIcon-crosswiki.png who made contact with their resting places (Their hosts are also fathers whose daughtersIcon-crosswiki.png are the main female allies to the heroes). The main difference is that Seto is an ally and he aids and guides the heroes while Evolto was the main villain of Build though he sometimes helped them. Another difference is that Seto only can temporally possess Naohisa’s body while Evolto had full control of his host.
    • Additionally, Seto is similar to VernageIcon-crosswiki.png from the aforementioned series, on top of their role as allies to the heroes and possessed one of the supporting characters to combat an incredibly powerful threat.
  • His suit is a re-painted Gaisoulg suit, just like Isamu Ozu’s Wolzard suits (both regular Dark and true Flame).
  • Ryusoul Brown is the first official Brown Ranger in Super Sentai history.
  • When he used his armor for the first and only time, Asuna called him 'Ryusoul Rust' before settling with brown. Ironically, this is just as fitting as rust is something that happens to metal which wears it down and makes it weaker than it was originally. With Seto possessing the body of an old man and not really able to fight well in it, he is, figuratively and literally, rusted.


See Also


Icon-ryusoger.png Kishiryu Sentai Ryusoulger
Koh - Melto - Asuna - Towa - Bamba - Canalo - Nada - Seto / Naohisa Tatsui
Ryusoul Changer - Mosa Changer - Gaisoul Ken - Max Ryusoul Changer - Ryusoul Calibur - RyuSouls - Ryusoul Ken - Mosa Blade - Mosa Breaker
Ui Tatsui - Naohisa Tatsui - Elder of the Ryusoul Tribe - Oto
The Masters
Master Red - Master Blue - Master Pink - Master Green - Master Black
Mecha and Robos
Kishiryu Tyramigo - Kishiryu Triken - Kishiryu Ankyloze - Kishiryu TigerLance - Kishiryu MilNeedle - Kishiryu MosaRex
Kishiryu DimeVolcano - Kishiryu Dinomigo - Kishiryu Cobrago - Kishiryu ShineRaptor - Kishiryu ShadowRaptor - Kishiryu Pachygaroo - Kishiryu Chibigaroo - Kishiryu Pterardon
Ryusoul Gattai KishiRyuOh - Ryusoul Gattai KishiRyuNeptune - Kishiryu SpinoThunder - Ryusoul Gattai Gigant KishiRyuOh - Ryusoul Gattai Kishiryuzin - Kishiryu CosmoRaptor - Ryusoul Gattai KishiRyuOh CosmoRaptor - Kishiryu Ptyramigo - Ryusoul Gattai YokuRyuOh - Ryusoul Gattai KishiRyuOh Jet - Ryusoul Gattai King KishiRyuOh - Ryusoul Gattai KishiRyuOh Five Knights Blue - Ryusoul Gattai KishiRyuOh Five Knights Black
Warfare Tribe Druidon
Leader: Eras
Generals: Tankjoh - Wiserue - Gachireus - Uden - Pricious - Saden (Master Black) - Gunjoji - Yabasword
Others: Kleon
Minosaurs: Minosaur Complete Body/Dragon Minosaur - Unicorn Minosaur - Medusa Minosaur - Kraken Minosaur - Cerberus Minosaur (Elder Brother) - Cockatrice Minosaur - Mimic Minosaur - Troll Minosaur - Shen Minosaur - Mummy Minosaur - Basilisk Minosaur - Kelpie Minosaur - Primogenitor Minosaur - Pan Minosaur - Ghost Ship Minosaur - Golem Minosaur - Arachne Minosaur - Grimoire Minosaur - Necromancer Minosaur - Dwarf Minosaur - Grim Reaper Minosaur - Dodomeki Minosaur - Beelzebub Minosaur - Poltergeist Minosaur - Dullahan Minosaur - Fairy Minosaur - Jack-o'-lantern Minosaur - Sylph Minosaur - Gnome Minosaur - Charybdis Minosaur - Wizard Minosaur - Satan Minosaur - Phantom Minosaur - Griffon Minosaur
Footsoldiers: Drunn Soldiers
Allies: Gaisoulg (Valma, Nada, Rita) - Space Dragon - Ganima Noshiagalda
Other Color Rangers
KensakuMakotoBossSwanGouTessaiShinyaDoctor UlshadeYayoiAkiraBudStinger

Secondary Rangers
Dark Magic Knight WolzardTicketConductorYamato

Power Sets
Battle CossackDekaMasterDekaSwanWolzardGekiVioletKyoryu GrayKyoryu VioletToQ 6gou
ToQ 7gouZyuoh BirdZyuoh CondorSasori OrangeRyu Violet/Commander

Community content is available under CC-BY-SA unless otherwise noted.