|This article is about a/an episode in Shuriken Sentai Ninninger.|
Tetsunosuke has created a new Nin Shuriken to further bring out Lion-Ha-Oh’s power. The Ninningers try defeating some Gashadokuro with Shurikenjin Drago and BisonKing, but find that they cannot combine with Lion-Ha-Oh. The reason, according to Yoshitaka, seems to lie with Kinji and Yakumo. In order to catch up to the OtomoNin’s power, just like Takaharu did, they try using the Chozetsu Shoubu Changer on Kinji but…
Meanwhile, Yokai Nurikabe appears and brings people to despair by creating “walls in life”. Yakumo and Kinji receive his attack and, in front of them, a big wall labeled “Takaharu” appears. Will they be able to overcome this?!
On an average summer day, the Ninningers receive a brand new combination shuriken that will allow them to combine with Lion Ha-Oh. However, when trying it out during a regular battle with a Gashadokuro, it ends up doing absolutely nothing, so Shurikenjin Drago and Bison King destroy the Giant Youkai on their own. Angered, Ariakenokata applies the fear Kyuemon had gathered to her skin and then demands him to gather ten times the fear he currently has.
Back at the dojo, Yoshitaka appears to tell Yakumo and Kinji that they are the reason they cannot combine with Lion Ha-Oh, and that they should try using him like Takaharu does, before disappearing. Listening to this, the two try using the Chouzetsu Shoubu Changer, but Shishi-Oh, saying the two are boring, does not activate the transformation. This is further emphasized when the Changer accidentally lands on an untransformed Fuuka, who turns into "Chouzetsu Fuuka".
Youkai Nurikabe is summoned, creating barriers of life such as "Score 40% higher" and "Parental Objections" to deject those trapped in them. This plan will gather a large amount of fear as well as an amusing strategy that will satisfy both generals. The Ninningers are easily beaten, with Yakumo and Kinji noticeably arguing about their strategy to defeat the Youkai. Ariake no kata orders Nurikabe to make quick work of them with the threat of turning him into a palace wall, and the latter traps Yakumo and Kinji with the wall of their life- Takaharu.
Meanwhile, the rest of the Ninningers are getting curb-stomped by Ariakenokata, with Takaharu unable to transform into Chouzetsu AkaNinger as he never got the Chouzetsu Shoubu Changer back. Shishi-Oh mocks Yakumo and Kinji for being unable to pass the wall, when they decide to break into the ground to free themselves.
Ariakenokata leaves the battle stating she'll get more wrinkles, while AoNinger and StarNinger arrive to defeat the Youkai. Teaming up with Chouzetsu AkaNinger, they are able to defeat Nurikabe with ease. Once again, the Youkai grows, and uses his Nurikabe Shield to deflect Lion Ha-Oh's Giant Shuriken Crush. However, this time the Ninningers are successfully able to use the new Combination Shuriken by turning Lion Ha-Oh's top half around. The resulting combination, Ha-Oh Shurikenjin, is a large tank with Shurikenjin riding it, and it quickly obliterates Nurikabe.
Once the battle is over, Yakumo and Kinji promise Takaharu that they'll eventually overcome him.
- Takaharu Igasaki (伊賀崎 天晴 Igasaki Takaharu): Shunsuke Nishikawa (西川 俊介 Nishikawa Shunsuke)
- Yakumo Katou (加藤 八雲 Katō Yakumo): Gaku Matsumoto (松本 岳 Matsumoto Gaku)
- Nagi Matsuo (松尾 凪 Matsuo Nagi): Kaito Nakamura (中村 嘉惟人 Nakamura Kaito)
- Fuuka Igasaki (伊賀崎 風花 Igasaki Fūka): Yuuka Yano (矢野 優花 Yano Yuka)
- Kasumi Momochi (百地 霞 Momochi Kasumi): Kasumi Yamaya (山谷 花純 Yamaya Kasumi)
- Kinji Takigawa (キンジ・タキガワ): Hideya Tawada (多和田 秀弥 Tawada Hideya)
- Tsumuji Igasaki (伊賀崎 旋風 Igasaki Tsumuji): Toshihiro Yashiba (矢柴 俊博 Yashiba Toshihiro)
- Yoshitaka Igasaki (伊賀崎 好天 Igasaki Yoshitaka): Takashi Sasano (笹野 高史 Sasano Takashi)
- Kyuemon Izayoi (十六夜 九衛門 Izayoi Kyūemon, Voice): Megumi Han (潘 めぐみ Han Megumi)
- Masakage Tsugomori (晦 正影 Tsugomori Masakage, Voice): Ryūsei Nakao (中尾 隆聖 Nakao Ryūsei)
- Ariake no Kata (有明の方 Ariakenokata, Voice): Kotono Mitsuishi (三石 琴乃 Mitsuishi Kotono)
- Yokai Nurikabe (妖怪ヌリカベ Yōkai Nurikabe, Voice): Yasuhiko Kawazu (川津 泰彦 Kawazu Yasuhiko)
- Shishi-Oh (獅子王 Shishiō, Voice): Yukio Yamagata (山形 ユキオ Yamagata Yukio)
- Tetsunosuke Saika the 22nd (雑賀 鉄之助 Saika Tetsunosuke): Mizuki Itagaki (板垣 瑞生 Itagaki Mizuki)
- Student: Juri Miyazawa (宮澤 じゅり Miyazawa Juri)
- Couple: Keisuke Ichihara (市原 佳祐 Ichihara Keisuke), Ayano Saito (斎藤 綾乃 Saitō Ayano)
- AkaNinger: Kosuke Asai (浅井 宏輔 Asai Kōsuke)
- AoNinger: Yuji Nakata (中田 裕士 Nakata Yuji)
- KiNinger: Yasuhiro Takeuchi (竹内 康博 Takeuchi Yasuhiro)
- ShiroNinger: Ryoko Gomi (五味 涼子 Gomi Ryōko)
- MomoNinger: Mizuho Nogawa (野川 瑞穂 Nogawa Mizuho)
- StarNinger: Masashi Takada (高田 将司 Takada Masashi)
- Shinobimaru: Satoshi Fujita (藤田 慧 Fujita Satoshi)
- Shurikenjin: Hideaki Kusaka (日下 秀昭 Kusaka Hideaki)
- Rodeomaru: Hiroyuki Tanaka (田中 宏幸 Tanaka Hiroyuki)
- Lion Ha-Oh: Jiro Okamoto (岡元 次郎 Okamoto Jirō)
- Kyuemon Izayoi: Yuichi Hachisuka (蜂須賀 祐一 Hachisuka Yūichi)
- Masakage Tsugomori: Riichi Seike (清家 利一 Seike Riichi)
- Ariake no Kata: Satoshi Fujita (藤田 慧 Fujita Satoshi)
- Yokai Nurikabe: Hiroyuki Muraoka (村岡 弘之 Muraoka Hiroyuki)
- Jukkarage: Various
- AkaNinger - Chozetsu (x2), Lion Ha-Ojo, Shinobimaru, Super Combination (Ha-Oh Shurikenjin) (x2; first attempt failed)
- AoNinger - Dragomaru, Chozetsu (failed), Goton (Wood Setting), Goton (Water Setting), Goton (Earth Setting)
- KiNinger - Dumpmaru
- ShiroNinger - Wanmaru, Chozetsu (incomplete)
- MomoNinger - Byunmaru
- StarNinger - Rodeomaru, Chozetsu (failed), Goton (Fire Setting), Furai (Wind Setting)
- Notably, Chozetsu Fuuka lacks her Ninninger suit's symbol on it, while when Yakumo turns into the Chozetsu mode later on, his Ninninger symbol is on the mode.
- As part of Super Hero Time, this episode aired alongside Kamen Rider Drive episode 39, When Will the Whirlwind Kidnapper Attack?.
- Sealing Shuriken purified: 22 out of 48
- In Ninningers' possession: 21
- In Kyuemon's possession: 1
- Most fireworks in closing credits:
- Blue: 4
- Red: 2
- Green: 4
- Yellow: 5
- Both StarNinger and AoNinger attempt to use the Chozetsu Shoubu Changer but fail. After gaining Shishi-Oh's approval, they vow that they will use Lion Ha-Oh when they are stronger. Both will later assume their Chozetsu forms and take command of Lion Ha-Oh in episodes 27 and 38 respectively.
Shuriken Sentai Ninninger Volume 6 features episodes 21-24: Shinobi 21: Burn! Ninja Baseball of Dreams, Shinobi 22: Super Combination! Ha-Oh Shurikenjin, Shinobi 23: It's Summer! Ninja Courage Test and Shinobi 24: It's Summer! The Chilling Arrival of Western Yokai!
Blu-ray Collection 2 comes with 12 episodes.