|This article is about a/an episode in Chikyuu Sentai Fiveman.|
Fumiya's Friendship Announcement (文矢の交際宣言 Fumiya no Kōsai Sengen) is the seventeenth episode of Chikyuu Sentai Fiveman.
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- Gaku Hoshikawa (星川 学 Hoshikawa Gaku): Toshiya Fuji (藤 敏也 Fuji Toshiya)
- Ken Hoshikawa (星川 健 Hoshikawa Ken): Kei Sindachiya (信達谷 圭 Shindachiya Kei)
- Fumiya Hoshikawa (星川 文矢 Hoshikawa Fumiya): Ryouhei Kobayashi (小林 良平 Kobayashi Ryōhei)
- Kazumi Hoshikawa (星川 数美 Hoshikawa Kazumi): Kazuko Miyata (宮田 かずこ Miyata Kazuko)
- Remi Hoshikawa (星川 レミ Hoshikawa Remi): Ryo Narushima (成嶋 涼 Narushima Ryō)
- Arthur G6 (アーサーG6 Āsā Jī Shikkusu, Voice): Rica Matsumoto (松本 梨香 Matsumoto Rika)
- Galactic Empress Meadow (銀河皇帝メドー Ginga Kōtei Medō): Chika Matsui (松井千佳 Matsui Chika)
- Galactic Empress Meadow (Voice): Keiko Konno (金野恵子 Konno Keiko)
- Captain Garoa (ガロア艦長 Garoa-kanchō): Takeshi Ishikawa (石川武 Ishikawa Takeshi)
- Galactic Swordsman Billion (銀河剣士ビリオン Ginga Kenshi Birion): Shunsaku Kudou (工藤俊作 Kudō Shunsaku)
- Galactic Scientist Doldora (銀河博士ドルドラ Ginga Hakase Dorudora): Hatsue Nishi (西初恵 Nishi Hatsue)
- Galactic Merchant Dongoros (銀河商人ドンゴロス Ginga Shōnin Dongorosu, Voice): Osamu Kato (加藤治 Katō Osamu)
- Galactic Fang Zaza (銀河の牙ザザ Ginga no Kiba Zaza): Motoko Watanabe (渡辺元子 Watanabe Motoko)
- Kumorugin (クモルギン Kumorugin, Voice): Kan Tokumaru (徳丸 完 Tokumaru Kan)
- Mother: Mayumi Sotozono (外薗まゆみ Sotozono Mayumi)
- Kazumi Hoshikawa(Child): Aya Inoue (井上 彩 Inoue Aya)
- Ken Hoshikawa(Child): Yuki Tokura (土倉有貴 Tokura Yūki)
- Guard: Daisuke Uchi (内 大輔 Uchi Daisuke), Reira Kurosawa (黒沢怜良 Kurosawa Reira)
- Girl: Tsubasa Sekiguchi (関口つばさ Sekiguchi Tsubasa)
- Woman: Kurumi Morimoto (森本くるみ Morimoto Kurumi)
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- Viewership: 6.5%
- Marks the first time the five siblings wore their sleepwear.
- Gaku, Ken, Fumiya and Remi start wearing their second outfits while Kazumi wears her third.
- Gaku's second outfit would later be replicated for Eikichi Onizuka, the main protagonist of the manga, anime and the live-action series, Great Teacher Onizuka. The only difference is their footwear; Gaku wears sneaker while Eikichi often wears brown sandals while wearing the outfit.
- The group takes their motto while wielding their personal weapons.
- Marks the first time Five Robo is launched in its complete state rather than being formed by its components. The first giant robot to be launched this way is Bio Robo in Choudenshi Bioman.
- For the third time FiveRed switches with his comrades inside Five Robo and this time it's FiveBlack who pilots it.
- The five siblings are remembering their childhood while riding in a grand carousel as the vision of the grand carousel is seen at the end of the episode.
Chikyuu Sentai Fiveman Volume 2 features episodes 10-18. 
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