Onsen Fun

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Chronology
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Episode 5
Information
Title:	Onsen Fun
Japanese Title:	るんるん温泉旅館 (Runrun Onsen Ryokan)
Original airdate:	May 3, 2025
Broadcast rating:	3.1%
Manga source:	Volume 3: Chapter 10 (029), Volume 4: Chapter 6-7 (035-036) (h.a.)
English version
English Title:	Onsen Fun
English airdate:	May 3, 2025
Story
Cast:	Yaiba Kurogane Takeshi Onimaru Sayaka Mine Musashi Miyamoto Kagetora Shonosuke Gerozaemon Geroda Namekuji-Otoko Kumo-Otoko Namako-Otoko Hitode-Otoko Komori-Otoko
Staff
Director:	Takahiro Hasui
Screenplay:	Eiji Umehara
Storyboard:	Kazuki Yokoyama
Episode director:	Kazuki Yokoyama
Animation director:	Yoshimichi Kameda (chief) Toshiyuki Sato Yuka Koiso
Voice Cast: Minami Takayama as Yaiba Kurogane Yoshimasa Hosoya as Takeshi Onimaru Manaka Iwami as Sayaka Mine Junichi Suwabe as Musashi Miyamoto Isshin Chiba as Kagetora Kosuke Echigoya as Shonosuke Takeharu Onishi as Gerozaemon Geroda Shuhei Sakaguchi as Kumo-Otoko Kazuyuki Okitsu as Komori-Otoko Kana Ichinose as Namako-Otoko Genta Nakamura as Hitode-Otoko Shinya Takahashi as Namekuji-Otoko Yuki Ominami as Waitress
Music
Opening song:	BLADE
Closing song:	pineapple tart

Onsen Fun (るんるん温泉旅館 ,Runrun Onsen Ryokan), is the 5th episode of Yaiba: Samurai Legend anime.

Cast

Characters introduced

Kumo-Otoko
	Humanoid spider Most intelligent member of the Eight Demons

Namako-Otoko
	Humanoid sea cucumber Member of the Eight Demons

Komori-Otoko
	Humanoid bat/vampire Member of the Eight Demons

Featured

Characters

Yaiba Kurogane

Takeshi Onimaru

Sayaka Mine

Musashi Miyamoto

Kagetora

Shonosuke

Gerozaemon Geroda

Oni Minions

Other characters

Namekuji-Otoko
	Humanoid slug Member of the Eight Demons

Kamakiri-Otoko
	Humanoid praying mantis Member of the Eight Demons

Hitode-Otoko
	Humanoid starfish Member of the Eight Demons

Location

Setting

• Tokyo
  • Chiyoda
    • National Diet Building
• Gifu
  • Gero
    • Gero Onsen
      • Yunoshimakan

Yaiba's current location: Gero Onsen

Manga to anime changes

• The battle against Namekuji-Otoko is longer in manga.
• The episode takes place at Yunoshima Inn located at Gero Town in Gifu Prefecture, while in manga it took place at fictional Dainoji Onsen.
• In manga, Kenjuro appeared and joined the group in the onsen. He doesn't appear in the anime version.
• The episode adapted the design of the inn owner in chapter 75 and the way he lured Yaiba's group to the inn.
• The subplot involving test of courage is anime original.

Trivia

• The conversation between Yaiba and Kamakiri-Otoko is a reference to Little Red Riding Hood, which is also mentioned by Sayaka.
• The pose and the style when Kamakiri-Otoko is knocked out is a reference to the famous final fight in Ashita no Joe.

See also

• Frightening Slug Man Appears
• The Secret of the Onimaru Manjuu
• Yaiba: Samurai Legend
• Yaiba