Tojima Wants to Be a Kamen Rider backdrop

Tojima Wants to Be a Kamen Rider S1E21 — Becoming the Ultimate Monster

8.6

Tojima Wants to Be a Kamen Rider•Season 1•Episode 21

Becoming the Ultimate Monster

8.6/10 · 77 votesMar 1, 202624 min

Ranked #8 of 24 in Season 1•+0.2 vs season avg

Thunder Raiko tracks Nakao down, but his training has made him more than she can handle at first.

Directed byNorifumi Okuno

Previous episodeE20 · I Was Craving a Battle With Shocker Next episodeE22 · Shocker is on the Move

Seasons1

Season 1 Episodes24

Tojima Wants to Be a Kamen Rider still

Tojima Wants to Be a Kamen Rider

I Am Tackle still

I Am Tackle

I Love the Moment When Hate Turns to Love still

I Love the Moment When Hate Turns to Love

Who Is the Strongest Kamen Rider? still

Who Is the Strongest Kamen Rider?

Let Me Be V3 Too still

Let Me Be V3 Too

Order Some Snacks still

Order Some Snacks

Let Me Join Shocker still

Let Me Join Shocker

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What's a Kamen Rider Do When A Dangerous Enemy Appears?

Show Me Your Rider still

Show Me Your Rider

Risk Your Life still

Risk Your Life

Tackle is the Strongest still

Tackle is the Strongest

I'll Take All You Riders On still

I'll Take All You Riders On

I Will Fight, and Die, Against Shocker still

I Will Fight, and Die, Against Shocker

I Want to Learn More About Humans still

I Want to Learn More About Humans

The Masked Idol, Heavy Chop still

The Masked Idol, Heavy Chop

An Imposter Can't Beat the Real Deal still

An Imposter Can't Beat the Real Deal

Everyone In The World Will Join Shocker still

Everyone In The World Will Join Shocker

I'll Fight Shocker Too still

I'll Fight Shocker Too

It'd Be an Honor to Die as a Rider still

It'd Be an Honor to Die as a Rider

I Was Craving a Battle With Shocker still

I Was Craving a Battle With Shocker

Becoming the Ultimate Monster still

E21 8.6Now viewing

Becoming the Ultimate Monster

Shocker is on the Move still

Shocker is on the Move

Let's Do This, Shocker! still

Let's Do This, Shocker!

I Wouldn't Mind Dying Today still

I Wouldn't Mind Dying Today

Cast5

Katsuyuki Konishi

Katsuyuki Konishi

Tanzaburo Tojima (voice)

Ai Kayano

Ai Kayano

Yuriko Okada (voice)

Kenichi Suzumura

Kenichi Suzumura

Ichiyo Shimamura (voice)

Soma Saito

Soma Saito

Mitsuba Shimamura (voice)

Fairouz Ai

Fairouz Ai

Yukarisu (voice)

Crew2

N

Norifumi Okuno

Director

K

Kenji Seto

Storyboard

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Episode Summary

"Becoming the Ultimate Monster" is episode 21 of Tojima Wants to Be a Kamen Rider season 1. It scored 8.6/10 from 77 votes, ranking #8 of 24 episodes this season (season average 8.4). Directed by Norifumi Okuno, it aired on March 1, 2026.

Next: E22 · Shocker is on the Move Best of Season 1