As of July 2026, Strike the Blood Season 1 aired in 2013 with 24 episodes — streaming now on Crunchyroll. Full episode guide and where to watch below.
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Strike the Blood Season 1

2013 24 Episodes Animation · Action & Adventure ⭐ 7/10

Strike the Blood Season 1 has built a real following on and among viewers who want their sci-fi to think as hard as it looks. A compact run that never overstays its welcome. 81 people have weighed in on TMDB, and the verdict leans heavily positive. Yoshimasa Hosoya sets the tone, and the world-building does the rest. Start it whenever you need something guaranteed to land.

Part of the current wave of titles people are actually watching, Strike the Blood Season 1 earns its spot. Strike the Blood Season 1 treats its concept seriously enough to follow it all the way through. Kojou Akatsuki's days as an ordinary high school student in the Demon District of Itogami Island come to an abrupt end after a fateful encounter leaves him with the remarkable abilities of a vampire. It isn't long before he is thrust into the center of attention when it is discovered that he is the fourth primogenitor, an immensely powerful vampire whom most consider to be merely a legend. Fearing Kojou's destructive potential, the Lion King Organization sends in an apprentice sword-shaman, Yukina Himeragi, to monitor, and should he become a threat, kill the boy deemed the world's most powerful vampire. Yoshimasa Hosoya and Risa Taneda lead a cast that brings real weight to the material. It was aired in 2013. Strike the Blood 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.

For late-night viewing or a proper weekend binge, Strike the Blood Season 1 fits the bill. It has built its own audience without needing a direct comparison. It is a manageable watch, easy to fit into a single week. Yoshimasa Hosoya's performance is the anchor the more ambitious moments need. The world-building pays off in ways you will not anticipate on a first watch.

📡 Where to Watch Strike the Blood Season 1

🇦🇺 Australia
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
🇳🇿 New Zealand
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🎬 Strike the Blood Season 1 — Episode Guide

E1
The Right Arm of the Saint I
2013-10-04
Itogami Island is a manmade island in the middle of the Pacific Ocean where summer never ends. A high school student at Saikai Academy, Akatsuki Kojou, is on his way home from studying with his classmates, Aiba Asagi and Yaze Motoki, when he notices a girl in the Saikai Academy middle school uniform...
E2
The Right Arm of the Saint II
2013-10-11
Yukina moves into the room next to Kojou's. When Kojou sees that she only has a bare minimum of furniture and necessities, he takes her to a hardware store. Kojou's younger sister Nagisa also insists on hosting a welcome party for Yukina, adding up to a very lively day.
E3
The Right Arm of the Saint III
2013-10-18
The morning after the battle against the Combat Deacon and his homunculus, the town is left in ruins. Yukina had been shocked to see how vastly Kojou's power exceeded that of the Familiar, but now she learns that Kojou can't even control his own Familiars. Kojou and Yukina pursue the escaped Eustach...
E4
The Right Arm of the Saint IV
2013-10-25
Eustach and Astarte continue their assault, finally launching an attack on the central support of the manmade island. When Kojou learns that Asagi is trapped inside, he's eager to save her, but his inability to control his own Familiars holds him in place. Unable to see him go on like this, Yukina m...
E5
From the Warlord's Empire I
2013-11-01
It's nearly time for the Saikai Academy ball sports tournament, and Yukina and Nagisa are all fired up to act as cheerleaders! And thanks to the workings of Motoki and Rin, Kojou and Asagi are paired up to participate in the badminton doubles match for their class. Meanwhile, Natsuki is occupied wit...
E6
From the Warlord's Empire II
2013-11-08
Kojou and Yukina meet Dimitrie Vatler, a nobleman who shows an abnormal degree of affection toward the Fourth Progenitor, and Kirasaka Sayaka, Yukina's old friend also under the employ of the Lion King Organization. When Vatler proposes that Kojou capture some terrorists hiding out on Itogami Island...
E7
From the Warlord's Empire III
2013-11-15
In her excessive defense of Yukina, Sayaka launches an attack on Kojou, but he can't control his powers. Yukina's arrival prevents the situation from growing dire, but Yukina leaves them both on the school roof to think about what they've done.
E8
From the Warlord's Empire IV
2013-11-22
Gardos the terrorist has reawakened the ancient weapon, Nalakuvera. Kojou and Sayaka barely escape with their lives, but they fall into the depths of the manmade island. Asagi hurries to analyze and control Nalakuvera while Yukina fights a fierce battle to stop Gardos.
E9
The Amphisbaena I
2013-11-29
The trouble with the Black Death Emperor Faction has been resolved. Kojou has returned to his daily life with Sayaka as a new acquaintance, but he can't decide whether or not he should reveal his vampiric nature to Asagi. It's around that time when he meets a friend of Nagisa's, Kanase Kanon, known ...
E10
The Amphisbaena II
2013-12-06
Kojou and Yukina prepare to ambush Possession Mask, the group responsible for the attacks around Itogami Island... but one of the Possession Mask members they see is Kanase Kanon.
E11
The Amphisbaena III
2013-12-13
The deserted island turns out to be a research facility owned by Magus Craft where Kanon's father, Kensei, conducts research. Kojou and Yukina are attacked by a vanguard force, but the one to save them from danger is Princess La Folia of Aldeigia, a young woman with deep connections to both Kanon an...
E12
The Amphisbaena IV
2013-12-20
When Kojou is disabled in the battle with Kanon, Yukina retreats with him behind La Folia's barrier. Both Yukina and La Folia share their blood with Kojou to aid in his recovery and the awakening of a new power. They have no choice but to rush to Kanon's rescue as her ego slips beyond control and sh...
E13
Labyrinth of the Blue Witch I
2014-01-10
Itogami Island's tourist industry flourishes as the season of the annual Halloween Fest draws near. Kojou reunites with his childhood friend Tokoyogi Yuuma for the first time in four years, but Yukina and Asagi are not pleased to see the intimate friendship she shares with him. Meanwhile, when the M...
E14
Labyrinth of the Blue Witch II
2014-01-17
Still stuck in Yuuma's body after the mind switch, Kojou rushes to see Yukina and the other girls. At first they're unsure whether to believe him, but after an explanation, Kojou and Yukina try to locate Yuuma in Kojou's body as they draw closer to unraveling the mystery of the witch of the void.
E15
Labyrinth of the Blue Witch III
2014-01-24
Yuuma's goal was to use the Fourth Progenitor's magic power to free her mother from the prison barrier. In accordance with her plans, the prison barrier appears above the ocean's surface near Itogami Island.
E16
Fiesta for the Observers I
2014-01-31
Kojou comes out of the battle with his own body back, but both Yuuma and Natsuki have fallen. The true prison barrier has been revealed along with Yuuma's mother, Tokoyogi Aya, and the other magic criminals who were incarcerated within.
E17
Fiesta for the Observers II
2014-02-07
Kojou and company search for Natsuki, whose spiritual powers were stolen by Aya's grimoire and is now missing. Just then, Yukina's surprised voice directs the others' attention to the TV, where Asagi is seen on the live broadcast of the Halloween Fest...
E18
Fiesta for the Observers III
2014-02-14
Kojou and Asagi take Sana on board Vatler's boat, the Oceanus Grave II, to protect her from danger. But Kojou's relief is short-lived as he is soon accosted by Vatler's beautiful young maids, and his stimulation is pushed very close to the limit when he ends up sharing a bath with Asagi...
E19
Fiesta for the Observers IV
2014-02-21
Through Sana, Yukina sees a memory of Natsuki and Aya ten years ago, and then dreams of a happier world she shares with Kojou, Sayaka, and their friends.
E20
Return of the Alchemist I
2014-02-28
Yukina and the other middle school girls are preparing to embark on Saikai Academy's traditional training camp. Yukina is worried about leaving Kojou as she has been released from her observer duties for the trip's duration, but Kojou tells her with a smile to go enjoy her time off.

🎭 Cast of Strike the Blood Season 1

Yoshimasa Hosoya
Yoshimasa Hosoya
Kojou Akatsuki (voice)
Risa Taneda
Risa Taneda
Yukina Himeragi (voice)
Asami Seto
Asami Seto
Asagi Aiba (voice)
Rina Hidaka
Rina Hidaka
Nagisa Akatsuki (voice)
Ryota Osaka
Ryota Osaka
Motoki Yaze (voice)
Hisako Kanemoto
Hisako Kanemoto
Natsuki Minamiya (voice)

📋 All Seasons of Strike the Blood

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