As of July 2026, Ragna Crimson Season 1 aired in 2023 with 24 episodes — streaming now on Hidive Amazon Channel. Full episode guide and where to watch below.

Ragna Crimson Season 1 poster

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Ragna Crimson Season 1

2023 24 Episodes Animation · Action & Adventure ⭐ 7/10

If you want science fiction that respects its own premise, Ragna Crimson Season 1 is available on and right now. A compact run that never overstays its welcome. With 66 viewer ratings on TMDB, this is not a title flying under the radar. Chiaki Kobayashi sets the tone, and the world-building does the rest. There is no real reason to keep putting it off.

Ragna Crimson Season 1 is not trying to be everything to everyone, and that focus is exactly what makes it work. The world-building is meticulous, but it is the characters who carry Ragna Crimson Season 1 through its more ambitious moments. Season 1 of Ragna Crimson includes 24 episodes. It aired from October 2023 to March 2024. This season stars Chiaki Kobayashi, Ayumu Murase and Inori Minase. Chiaki Kobayashi and Ayumu Murase lead a cast that brings real weight to the material. It was aired in 2023. Ragna Crimson Season 1 resists the temptation to explain everything, trusting the audience to sit with ambiguity. There is real craft here, even in the moments that do not fully land.

Viewers burned by ambitious sci-fi that could not sustain its premise should give Ragna Crimson Season 1 a chance. It does not lean on comparisons to make its case. A contained run means every episode is doing real work. Chiaki Kobayashi grounds the bigger ideas in something human. Once you are in, you will want to talk about it.

📡 Where to Watch Ragna Crimson Season 1

🇦🇺 Australia

Hidive Amazon Channel

🇺🇸 United States

Hidive Amazon Channel

🇬🇧 United Kingdom

Hidive Amazon Channel

🇨🇦 Canada

Hidive Amazon Channel

🇳🇿 New Zealand

Hidive Amazon Channel

🎬 Ragna Crimson Season 1 — Episode Guide

The Day the Reaper Was Born

Death and fire haunt Ragna’s dreams and, deep within his heart, he somehow knows they’re omens. If he doesn’t grow stronger, and soon, all that awaits him is lifelong regret.

The Beginning of the Story

Temruogtaf must be stopped. But Ragna loses interest in the dragon and turns his attention to one of his maids. Thanks to his new old memories, he knows who she really is.

Crimson is no hero. He will manipulate and use others if it furthers his goal, and that callousness is precisely what makes him a needed ally against dragons.

Dragons have another weakness aside from sunlight and silverine: pride. But Ultimatia is not like other dragons.

Ragna met Ultimatia before in another life and he did not emerge from that encounter unscathed. Now, in this life, dragons are disappearing and Ultimatia needs to know why.

Ultimatia may have control over time itself, but Crimson knows her powers must have a weakness. Once that happens, all variables will be accounted for. Or so Crimson believes.

Ragna’s relentless assault forces Ultimatia on the defensive. Unaware of his identity, an unexpected emotion overtakes the dragon monarch as their battle rages on: Fear.

Ultimatia made an impossible choice and, with Nebulim out for their blood, Ragna and Crimson must now withdraw. However, they may have only exchanged one problem for another.

Negotiation and True Nature

Starlia's ability to see a person's true nature puts Crimson at a disadvantage, but when Ragna suddenly appears, the princess sees something in him she's never seen before.

Stakes and Cooperation

While Crimson uses Ragna as a bargaining chip to convince Starlia to accept their aid, Woltekamui vows to remain at Ultimatia's side and gives her much-needed encouragement.

Tactics and Knowledge

Ragna spars with the Argentum Corps and infuses their weapons, while Crimson assists with the teleportation circles. But they are not the only ones preparing for battle.

Determination and Readiness

The battle begins at sunset, but before they confront an uncertain fate, Starlia asks Ragna to listen to a heartfelt request.

Hero of the Battle

The battle has begun, but Ragna and the Argentum Corps are not facing just any enemy. They are facing those who mean to exterminate them by any means necessary.

Impatience and Vigilance

Olto Zora's cunning plan overwhelms the corps as they face the power of mature dragons. However, Crimson's impending offensive and Starlia's resolve may be the key to victory.

Latent Awakening

The tide is turning as the corps claw their way through the battlefield—Ragna and Starlia the source of their inspiration. But none are aware of Crimson's callous scheme.

Will of Resistance

Olto Zora used to be someone else once, and Starlia reminds him of someone he knew long ago.

Olto Zora and Taratectra are lifelong friends who stand at a crossroads that could determine the battle. Now, Ragna and Starlia may be the only ones who can prevent calamity.

End of the Battle to the Death

The battle is over, but at a heavy price. While a weary corps mourn their losses, representatives from the Solarian Church arrive to meet the fabled Reaper.

Reason to Fight

Ragna has found a reason to fight, and he and the Argentum Corps will take the battle to the Blood of the Wing, no matter what Crimson thinks.

Four superior dragons stand between them and the Winged Monarch. With unyielding resolve, the Argentum Corps storm a dead capital for the final battle.

🎭 Cast of Ragna Crimson Season 1

Chiaki Kobayashi

Chiaki Kobayashi

Ragna (voice)

Ayumu Murase

Ayumu Murase

Crimson (voice)

Inori Minase

Inori Minase

Leonica (voice)

Mamiko Noto

Chimera (voice)

Hiroki Touchi

Reina Ueda

Ultimatia (voice)

Takehito Koyasu

Takehito Koyasu

Grymwelte (voice)

Shunsuke Takeuchi

Shunsuke Takeuchi

Disas Trois (voice)

Kozo Shioya

Kozo Shioya

Temruogtaf (voice)

Nobutoshi Canna

Nobutoshi Canna

Future Ragna (voice)

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