|This article is about a/an ally in Uchu Sentai Kyuranger.|
With Kotaro, Jiro studied the 88 constellation systems at the planetarium.
While the adults refused to defy Jark Matter to make it easier for everyone, Jiro 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.
When Kotaro joined the Kyurangers, it was later revealed that Jirou was left in the care of his grandfather. He remained there until Kotaro returned to Earth along with the other Kyurangers for what they beleived would be the final master plan of Don Armage. Jirou was one of the first to greet them and led the group standing up to Professor Anton and his Champ Clones. In retaliation, Jirou was kidnapped and held hostage. He would had died from Anton dropping him from atop a balcony had Stinger not used his tail to rescue him. Stinger explained that as Kotaro considered Stinger his older brother, Jirou effectively was a younger brother to him as well.
Behind the scenes
Jiro Sakuma is portrayed by Eiji Ofuji (大藤 瑛史 Ōfuji Eiji).
- Uchu Sentai Kyuranger
- Space.5: 9 Ultimate Saviors
- Space.10: A Small Giant, Big Star! (flashback)
- Space.11: Three Kyutama to Save The Universe (mentioned only)
- Space.25: Planet Toki, the Boy's Determination! (mentioned only)
- Space.27: Indaver Panic Within the Orion!? (flashback; archive footage only)
- From Episode of Stinger, Uchu Sentai Kyuranger: High School Wars 3rd Period: Science Class (mentioned only)
- Space.45: Tsurugi's Life and Earth's Crisis
- Space.46: Between Hope and Despair (mentioned only)
- Space.47: The Saviors' Promise
- Space.Final: Echo in the Universe! Alright, Lucky