Okinawa Arc
7 eps
7 canon 📷 7
Saya Otonashi lives a peaceful, amnesiac life as a high school student in Okinawa with her adoptive family. Her quiet world is violently shattered when a grotesque, blood-drinking monster called a Chiropteran attacks her school, and a mysterious cellist named Haji forces her to awaken her true nature.
Reeling from the horrific battle, Saya struggles to accept the terrifying strength she displayed. Her adoptive father, George, tries to comfort her with his life motto, "Nankurunaisa" (things will work out), just before the US military and the secret organization Red Shield descend on them.
George's tragic past with Red Shield is revealed. The military moves in to cover up the Chiropteran incident, forcing Saya and Haji to return to her family's ancestral tomb where her fragmented, blood-soaked memories begin to surface.
David, an operative for Red Shield, demands that Saya embrace her destiny as the only weapon capable of killing Chiropterans. Meanwhile, George is critically wounded while trying to protect his family from another brutal monster attack.
Desperate to save George, Saya, Kai, and Riku infiltrate a heavily guarded US military medical facility. They discover a horrifying conspiracy: the military is actively researching and creating artificial Chiropterans.
In one of the most devastating episodes of the series, George begins to mutate into a Chiropteran after being injected with Delta 67. To save his soul and protect his children, he forces a heartbroken Saya to use her blood to end his life.
Traumatized by George's death, Saya completely shuts down. Kai, overwhelmed by grief and anger, steals a gun and recklessly attempts to hunt down the monsters himself, forcing Saya to finally pick up her sword and accept her grim duty.
Vietnam Arc
8 eps
7 canon 1 good filler 📷 8
Red Shield traces the origin of the artificial Chiropterans to an exclusive international boarding school in Vietnam. Saya goes undercover as a student, navigating the strict social hierarchy while hunting for the elusive "Phantom."
Saya befriends a local Vietnamese girl named Min, offering a brief glimpse of the normal life she lost. Meanwhile, Red Shield discovers that the school is a massive front for testing experimental combat drugs on the student body.
A mysterious, aristocratic man named Solomon appears, showing an unsettling interest in Saya. The dark history of the Vietnam War and Saya's terrifying, berserk rampage decades ago begins to slowly unravel.
During the school's grand ball, the Phantom's identity is revealed, triggering a massive Chiropteran outbreak. Saya is forced into a brutal, claustrophobic battle in the school's underground storage facility to protect her new friends.
Saya and Haji venture deep into the Vietnamese jungle to uncover a hidden research facility. The oppressive heat and the haunting atmosphere trigger more of Saya's suppressed, violent memories from the 1960s.
Saya finally remembers her blood-drenched rampage during the Vietnam War, realizing she slaughtered both soldiers and innocents in a feral frenzy. The horrific realization nearly breaks her mind, but Haji anchors her to the present.
Before leaving Vietnam, the group takes a rare, quiet day off. Kai and Riku explore the city, while Saya grapples with her restored memories. It is a beautifully animated, melancholy breather before the war escalates.
The group discovers that the container holding Diva, Saya's immensely powerful twin sister, is being transported to Russia. Kai realizes how powerless he is and resolves to train with Red Shield to protect his siblings.
Russia Arc
4 eps
4 canon 📷 4
Boarding the Trans-Siberian Railway in pursuit of Diva, the group realizes they have walked into a trap. A powerful Chiropteran attacks the moving train in the freezing cold, separating Saya from the rest of the team.
Saya and Haji must fight their way across the frozen Russian tundra. A haunting flashback reveals the sacred promise Haji made to Saya centuries ago: if she ever loses her humanity, he will be the one to kill her.
The team regroups in Ekaterinburg. They uncover a massive, abandoned Soviet research facility where experiments on Chiropterans were conducted during the Cold War. The scale of the conspiracy grows terrifyingly large.
Saya comes face-to-face with a mutant created from Diva's blood. The intense battle forces Saya to push her physical limits, leading to a crushing realization about how vast and wealthy the organization protecting Diva truly is.
The Zoo Arc
6 eps
5 canon 1 mixed 📷 6
The investigation leads the team to France. Solomon introduces himself formally as one of Diva's "Chevaliers"-immortal, fiercely loyal bodyguards who possess incredible power and operate at the highest levels of human society.
In the French countryside, the group investigates a vineyard suspected of mass-producing the Delta 67 drug. The quiet rural setting contrasts sharply with the grotesque, industrialized blood-harvesting operation they discover.
Saya returns to the "Zoo," the grand, decaying European estate where she and Diva were raised centuries ago. The physical ruins of her childhood home trigger a flood of memories about Joel, the man who treated her like a daughter and Diva like an experiment.
An incredible flashback to the 19th century. A young, innocent Haji is purchased as a companion for Saya. The episode chronicles their growing bond, Saya's naivety, and the tragic, bloody tragedy that led Haji to become her first Chevalier.
Diva's haunting, hypnotic singing echoes through the ruins of the Zoo. The group is ambushed by Carl, a deeply psychotic Chevalier obsessed with killing Saya. A massive, high-stakes battle erupts across the estate.
Diva infiltrates the headquarters of Red Shield, unleashing absolute slaughter. She targets Riku, forcing Saya and Kai to endure a devastating, permanent loss that drastically alters the trajectory of the entire war.
The Schiff Arc
7 eps
6 canon 1 mixed 📷 7
Devastated by Riku's supposed death, the Red Shield survivors regroup in London. A new, rogue faction of artificial Chiropterans known as the Schiff makes their presence known, attacking both Saya and Diva's forces in a desperate search for a cure to their rapidly decaying bodies.
Saya and Haji investigate a string of gruesome murders in Paris. They cross paths with the Schiff, leading to a tense, three-way battle in the catacombs as the tragic, engineered nature of the Schiff is brought to light.
The Schiff's leader, Moses, realizes that the blood of Diva's Chevaliers is poisonous to them. Desperate to survive the "Thorn" (a rapid crystallization disease), they mistakenly believe Saya's blood is the key to their salvation.
Saya discovers the horrifying truth about Riku: he was not killed by Diva, but forcefully turned into her Chevalier. The revelation shatters Kai, forcing him to grapple with the fact that his little brother is now a blood-drinking monster.
Red Shield uncovers the original diaries of Joel Goldschmidt. The deep, centuries-old lore of the Chiropteran queens is fully explained, detailing the biological necessity of their endless war and the 30-year hibernation cycle.
Diva and her Chevaliers launch a catastrophic, full-scale assault on the Red Shield headquarters ship. In the ensuing slaughter, the ship sinks, and Saya is forced to enter her 30-year hibernation early to survive.
While Saya sleeps, a beautifully animated flashback details Haji's desperate, lonely years searching for her during the early 20th century, highlighting his unwavering devotion as he tracks a feral, amnesiac Saya across war-torn Europe.
USA Arc
18 eps
17 canon 1 good filler 📷 18
A one-year time skip. Kai has grown into a hardened, ruthless fighter working with a fragmented Red Shield. He travels to London and discovers that Saya has prematurely awakened from her hibernation, but she is weak and feral.
Saya, slowly regaining her sanity, reunites with Kai. They ally with the remnants of the Schiff, realizing they must travel to the United States, where Diva has partnered with a massive pharmaceutical corporation to distribute her blood globally.
The team infiltrates New York City. Solomon, disillusioned by Diva's cruelty and deeply in love with Saya, makes the shocking decision to defect from his family and offer his services as Saya's Chevalier.
Solomon's defection causes massive friction within the group. Haji's quiet jealousy and unwavering loyalty are tested as Solomon attempts to whisk Saya away from the endless cycle of war.
Diva's Chevaliers begin to turn on each other. Carl, completely consumed by his obsessive hatred for Saya, launches a suicidal, collateral-damage-heavy assault in the middle of a crowded city.
Carl forces a final, bloody confrontation with Saya on an abandoned island. The brutal duel pushes Saya to her absolute limits, ending with Haji and Saya executing a perfect, lethal combination.
A deeply emotional breather episode. With the final battle looming, the Red Shield team throws a small, makeshift party to celebrate Thanksgiving. It is a heartbreaking reminder of the normal life they are all fighting to reclaim.
Solomon fully commits to protecting Saya, engaging in a lethal duel against his own brother, James. The tragic reality of the Chevaliers-monsters bound by blood but possessing human hearts-is explored.
The horrifying scale of Diva's plan is revealed: she intends to use a globally broadcasted concert to trigger the Delta 67 drug in millions of people, turning a massive portion of humanity into Chiropterans instantly.
Saya and Haji infiltrate Diva's concert in a desperate bid to stop the broadcast. Solomon sacrifices his immortal life to protect Saya from a fatal blow, dying with a smile on his face.
The broadcast begins, and chaos erupts globally as people begin mutating. Saya violently forces her way through Diva's remaining defenses, her blood boiling with centuries of hatred and grief.
The Schiff make their final stand, sacrificing the last of their decaying bodies to hold off the military and clear a path for Saya. Moses and Karman find peace in the sunlight as they turn to ash.
Amshel, Diva's eldest and most manipulative Chevalier, confronts Haji. The two engage in a massive, monstrous battle in the skies above the city, fighting for the fate of their respective queens.
Saya finally corners Diva. The two queens clash in an incredibly fast, vicious, and bloody duel. The tragic reality of Diva's existence-a feral child starved of love and treated as a lab rat-is painfully laid bare.
In a shocking twist, Diva is revealed to be pregnant. The Queens' duel reaches its bloody conclusion as their blood mixes, crystalizing Diva's body and ending her centuries-long reign of terror.
With Diva dead, Amshel goes completely berserk. Haji and Saya team up to finally put the eldest Chevalier down, bringing an end to the immediate threat of the Chiropteran apocalypse.
The war is over, but Saya realizes she and Diva's newborn children are the last remaining threats to humanity. Bound by her own tragic sense of duty, she prepares to kill the babies and then herself.
Kai intervenes, refusing to let Saya bear the burden of murder and suicide. He promises to raise the children as humans. Haji declares his own independence, telling Saya to live. Years later, a peaceful Saya returns to Okinawa to enter her 30-year hibernation, surrounded by the family she saved.
