Warning: This article contains spoilers for episode 21 of Yoroi Shinden Samurai Trooper.
The war against the Tenkai Realm reaches a devastating turning point in episode 21 of Yoroi Shinden Samurai Trooper, titled “Keikoku.” After the shocking conclusion of episode 20, where Ramaga (Rama Ga) intervened in the final battle and possessed Kai’s body to slaughter the Ten Braves, this week’s episode delivers the full weight of that tragedy—and then drops a bombshell in the next-episode preview that has fans reeling.

As the combined forces of the Samurai Troopers and the Ten Braves face off against the Tenkai Realm, Ramaga’s sudden attack splits the group. Possessing Kai, he cuts down Kamanosuke, Seikai Nyudo, Isanyudo, and Saizou one by one. Sasuke rushes to the scene but arrives too late, finding his comrades already lifeless. The emotional impact is immediate, with fans taking to social media to express their grief: “I can’t believe we finally got them together and now this?” and “Sasuke, please don’t die…”

The episode doesn’t let up. As the four Samurai Troopers—now without Kai—remain trapped in a different space, the fourth gate guardian Gomei is confronted by Inmei, who seeks to steal the crystal of the Four Sacred Beasts. It’s revealed that the Four Sacred Beasts were once a single entity, and Inmei’s actions are part of a larger scheme to achieve a complete form. Meanwhile, in the human world, the first-generation Samurai Troopers—voiced by the original cast including Kusao Takeshi, Sasaki Nozomu, and Nishimura Tomohiro—notice something strange: the defeated Tenkai soldiers are disappearing, an unprecedented event.

The Ten Braves had grown close to the Samurai Troopers through training, shared meals, and even a promise to perform a song together. Their deaths are made even more painful by the discovery of a music score carefully tucked away, showing they intended to keep that promise. Fans were heartbroken: “They really meant to keep that promise…” and “This is too much.”

When the four Samurai Troopers finally reunite with Sasuke, they find themselves powerless against Ramaga, who now wields the power of the fallen Ten Braves. Sasuke, alone, faces Ramaga with a desperate resolve. He tells his comrades, “If it were you, would you stop? I’m a hero too. Watch closely—this is my… our final attack!” He throws the origami shuriken given to him by a child he once saved. But Ramaga sees through the attack, and Sasuke falls as well.

Fans were already on edge, and Sasuke’s death—with a flashback of his time with the Troopers and the Ten Braves—brought many to tears. “There’s no hope left if Sasuke is gone,” one viewer wrote. The episode ends with Ramaga obtaining the Shield of Hegemony by absorbing Sasuke’s life, and Sagume appears to confront him. But just as the episode seems to conclude, the next-episode preview drops a shocking word: “my child.”

Fans immediately began speculating: “Is Kai Sagume’s child?” “Are they married?” The preview suggests that Kai’s birth secret will finally be revealed in the next episode, airing September 8.

In related news, the latest issue of Megami Magazine (October 2026 issue) features a newly drawn illustration of Nastu in a high-leg swimsuit, along with an interview with her voice actress Kinoshi Sayaka and producer Tsukamoto Shigeka. The magazine is available now.
For those following the broadcast, Yoroi Shinden Samurai Trooper airs on TOKYO MX every Tuesday at 23:30, on Kansai TV every Tuesday at 25:19, and on BS11 every Wednesday at 24:00. Streaming services include dAnime Store, U-NEXT, and Anime Houdai starting July 8, with additional platforms from July 11.
Staff & Cast
| Role | Name |
|---|---|
| Original Work | Yadate Hajime |
| Director | Fujita Youichi |
| Series Composition & Script | Mutou Shougo |
| Main Character Design | Murota Yuuhei |
| Villain Character Design | Kotobuki Tsukasa |
| Yoroi Gear Design (Original) | Okamoto Hideo |
| Animation Yoroi Gear Design | Suzuki Takuya |
| Chief Animation Director | Yamanaka Junko, Tanaka Tomoko |
| Main Animator | Nishimura Hiroyuki |
| Screen Design | Saitou Akira |
| Art Director | Tamayama Osamu |
| Color Design | Tanaka Miho |
| CG Director | Suzuki Masaomi, Itamura Takumi |
| Photography Director | Ishiguro Rumi |
| Editor | Sakamoto Kumiko |
| Sound Director | Tanaka Ryou |
| Music | Katayama Shuji (Team-MAX) |
| 2nd Cour OP Theme | Dannie May “BAD Idenko” |
| 2nd Cour ED Theme | Karanoa “Bakemon” |
| Animation Production | Sunrise |
| Production | “Yoroi Shinden Samurai Trooper” Production Committee |
Cast
| Character | Voice Actor |
|---|---|
| Kai | Ishibashi Youa |
| Uesugi Kaijin | Enoki Junya |
| Houjou Musashi | Murase Ayumu |
| Houjou Yamato | Takeuchi Shunsuke |
| Ishida Shion | Kumagai Kentarou |
| Oda Ryuusei | Masuda Toshiki |
| Aragaki Mirei | Lynn |
| Nasty Yagyu | Kinoshi Sayaka |
| Yamano Jun | Shimono Hiro |
| Sanada Ryou | Kusao Takeshi |
| Hashiba Touma | Nojima Hirofumi |
| Date Seiji | Okiayu Ryoutarou |
| Mouri Shin | Sasaki Nozomu |
| Shuu Reikou | Nishimura Tomohiro |
| Rama Ga | Konishi Katsuyuki |
| Sasuke | Satou Takuya |
| Saizou | Toriumi Kousuke |
| Kamanosuke | Terashima Takuma |
| Seikai Nyudo | Sugita Tomokazu |
| Isanyudo | Amasaki Kouhei (with “tatsusaki” for the kanji) |
| Nezu | Suzumura Kenichi |
| Anayama | Sawashiro Chiharu |
| Unno | Takeuchi Ryouta |
| Kakei | Endou Daichi |
| Mochizuki | Kumagai Toshiki |
| Yashima no Sagume | Sakamoto Maaya |
| Inmei | Koyasu Takehito |
| Gomei | Maeno Tomoaki |
| Shimei | Endou Aya |
| Gaimei | Shirakura Hiroshi |
(C) SUNRISE










