Akaza Samamiya Books in Order

A vampire called Mary seeks an exorcist who can finally end his centuries-long life. When Maria proves unable to kill vampires, Mary agrees to protect him while the young exorcist searches for a way to fulfill their bargain.

With Mary's help, Maria investigates his suppressed memories and the exorcism power he never knew he possessed. Mary also begins recovering his lost past, raising troubling questions about whether their lives were connected long before their present alliance.

Maria remembers that the vampire who killed his father looked like Mary, shaking his trust in their partnership. When he attempts to rescue the kidnapped vampire and uncover the truth, he encounters another presence inside his companion.

Learning that another personality within Mary killed his father, Maria struggles to reach that hidden presence and understand its motives. A mysterious visitor offers clues about his parents' meeting and the secrets carried through his family lineage.

Mary and Maria travel to England seeking the mentor who trained Shinobu to fight vampires. Finding him gone, they encounter a mysterious figure instead, while the familiar surroundings awaken memories Mary had long kept buried.

Mary's hidden counterpart offers Maria information about his father's death in exchange for restoring Mary's lost memories. While Maria hesitates to confront the truth, Hydra's arrival at an old English castle reveals another connection to the vampire's past.

Maria and Shin discover a vampire attack at the Sakuraba Estate. Meanwhile, Mary's attempt to awaken the immortal Yzak leaves him weakened, and a sudden loss of memory further unsettles Maria as the danger surrounding them grows.

A revelation from Maria overwhelms Mary, allowing his other self to take control. As that counterpart ventures out alone and descends toward madness, Maria, Shinobu, and Hydra must confront three vampires whose arrival deepens the crisis.

Mary's twin brother struggles against a consuming thirst for blood, threatening to transform Mary into something far more dangerous. Hydra discovers Bloody Eye's plans, while Maria attempts a desperate strategy to recover Mary at considerable personal risk.

The purpose behind Mary's twin brother's death and resurrection finally emerges, revealing an effort to save the weakened vampire. As Mary confronts this truth, Maria faces the promise to end his life and the tragedy surrounding its fulfillment.