Blood+

Blood+

BLOOD+
2005 -2006 Production I.G / Aniplex MBS / TBS 50 episodes Completed
Action Horror Dark Fantasy Mystery
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Details & Synopsis
Saya Otonashi lives in Okinawa with an adoptive family, no memory of her past, and a medical condition nobody can explain to her. Then a creature attacks her school, a cellist named Hagi hands her a sword, and her body remembers exactly what to do before her mind catches up.

Blood+ took the basic image from Blood: The Last Vampire, a girl with a katana hunting Chiropterans, and turned it into a fifty-episode family tragedy that moved from Okinawa to Vietnam, Russia, France, England, and New York. It aired for a full year beginning in 2005, which gave it room to be slower than people expected. That pace is the point. Saya is not collecting monsters of the week. She is recovering a life that was taken from her in pieces, and every answer makes the family around her more complicated.

Adult Swim brought it west in 2007, where it became one of those shows people either followed every week or lost completely after missing three episodes. The opening themes changed, the locations changed, the conspiracy kept widening, and Hagi remained Hagi.

Do not confuse it with Blood-C. Same name, different wound. Blood+ is the one that takes its time.
Alt Title BLOOD+
Studio Production I.G / Aniplex
Network MBS / TBS
Aired 2005 - 2006
Episodes 50
Genre Action, Horror, Dark Fantasy, Mystery
Status Completed
← All lore

Chevalier Order & Oath

The Direct Sanguine Covenant

How a Human Becomes a Chevalier

A Queen's blood can save a dying human and change what comes after

A Chevalier is not created by an ordinary Chiropteran bite. The transformation happens when a human receives a Queen's blood and survives.

Blood+ shows this through people rather than presenting one ceremonial rule. Saya gives Haji her blood after his fatal fall at the Zoo. Much later, she uses her blood to save Riku after Diva leaves him near death.
What changed
The person survives, but survival permanently places them inside the Queens' bloodline conflict. That is why becoming a Chevalier is never just a power-up.
Saya Otonashi Haji Riku Miyagusuku

The Chevalier Bond Does Not Erase Free Will

Devotion is real · obedience is not mechanical

Chevaliers are strongly drawn to protect and serve the Queen whose blood created them, but Blood+ repeatedly refuses to make that bond mind control.

Haji can disagree with Saya and withhold things he believes she is not ready to face. Solomon ultimately acts against Diva's side. Nathan remains impossible to reduce to simple obedience.
Why it matters
Blood creates a relationship and a powerful obligation. It does not finish the person's choices for them.
Haji Solomon Goldsmith Nathan Mahler

Chevaliers Outlive Ordinary Human Lifespans

Ageless service across a Queen's waking and sleeping cycles

Chevaliers stop aging in the ordinary human sense and can remain active across the decades when their Queen disappears into hibernation.

That longevity is why Haji can carry memories Saya no longer has and why Diva's Chevaliers can build influence across generations of ordinary human institutions.
Why it matters
A Queen sleeps through history. Her Chevaliers do not. They become the bridge between one waking period and the next.
Haji Amshel Goldsmith

Anatomical Manipulation & Abilities

Chevalier Bodies Can Change With the Fight

SPOILER!

Human appearance · transformed limbs · wings · individual monstrous forms

Chevaliers can pass as human while carrying bodies capable of far more dramatic transformation. Different Chevaliers manifest that ability differently: altered limbs, bladed forms, wings and more complete Chiropteran transformations all appear across the series.
How you can tell
The human appearance is not a disguise they must permanently abandon in combat. The change can be partial, temporary and specific to what the fight requires.

Regeneration Makes Chevaliers Hard to Kill, Not Untouchable

Severe wounds can heal · opposing Queen blood remains decisive

Chevaliers recover from injuries that would kill an ordinary human and can survive extreme physical damage.

That does not make every wound meaningless. Blood+ still treats exhaustion, dismemberment, impalement and accumulated damage as real problems, while blood from the opposing Queen's line can trigger the crystallization that regeneration cannot simply undo.
Why it matters
The series gives Chevaliers enormous durability without turning every confrontation into consequence-free damage.

Hagi's Covenant & Diva's Council

Haji: Saya's First Chevalier, and the Choice He Keeps Making

1870 companion · 1883 transformation · more than a century beside Saya

Haji enters Saya's life as a human boy brought to the Zoo to be her companion. In 1883, a fall while trying to retrieve a flower leaves him dying, and Saya gives him her blood.

That moment makes him her Chevalier. It does not fully explain the relationship that follows.
Why it matters
Haji's devotion matters because Blood+ keeps presenting it as something lived over time. The blood bond may begin the Chevalier relationship, but his patience, restraint and repeated decision to remain beside Saya are what give it emotional weight.
Haji Saya Otonashi

Diva's Five Chevaliers Do Not Function as One Mind

SPOILER!

Amshel · Solomon · Karl · James · Nathan

Diva has five major Chevaliers: Amshel Goldsmith, Solomon Goldsmith, Karl Fei-Ong, James Ironside and Nathan Mahler.

They share a Queen, but they do not share one personality or one interpretation of service. Amshel turns devotion into a long political project. Karl becomes obsessive. James is rigidly loyal. Solomon breaks ranks. Nathan remains deliberately difficult to place.
Why it matters
Calling them Diva's Chevaliers explains the blood relationship. It does not explain the people inside it.
Diva Amshel Goldsmith Solomon Goldsmith Nathan Mahler

Solomon Proves Blood Is Not the End of the Choice

SPOILER!

Diva's Chevalier · breaks with his brothers · chooses Saya

Solomon begins as one of Diva's Chevaliers and one of the Goldsmith brothers sustaining her side of the war.

His feelings for Saya gradually put him in conflict with the role his bloodline assigned him. He does not become simple, and he does not stop being what Diva made him. He chooses to act against that inheritance anyway.
Why it matters
Solomon is the clearest proof that a Chevalier can be bound by blood without being reduced to blood.
Solomon Goldsmith Saya Otonashi Diva

Riku Becomes Saya's Second Chevalier

SPOILER!
Diva drains Riku badly enough that he will die without intervention. Saya gives him her blood and saves his life, turning him into her second Chevalier.
What changed
Saya's Chevalier line is no longer only Haji and ancient history. The rule enters the Miyagusuku family in the present, where nobody experiences it as an abstract piece of lore.
Riku Miyagusuku Saya Otonashi

Amshel Turns Devotion Into a Century-Long Project

SPOILER!
Amshel is Diva's oldest and most politically effective Chevalier. His loyalty becomes institutions: companies, laboratories, alliances and plans built to survive ordinary human lifetimes.
Why it matters
Amshel shows what a Chevalier bond can become when devotion is given money, time and no meaningful outside limit.
Amshel Goldsmith Diva

Myth: A Chevalier Is Just a Queen's Superpowered Bodyguard

SPOILER!

The blood relationship is a starting condition, not a personality

Protection is part of the role, but Blood+ uses Chevaliers for much more than combat.

Haji carries memory. Amshel builds an empire. Solomon becomes a moral contradiction. Nathan watches the conflict from a position the series deliberately refuses to simplify.
Why it matters
"Chevalier" tells you how the relationship began. It does not tell you what that person will make of it.
Haji Amshel Goldsmith Solomon Goldsmith Nathan Mahler