OVA
Description
Mamoru Kusanagi's origins lie in childhood enslavement by the Aragami god Yamata no Orochi, which murdered his parents—Shinto shrine priests—and forcibly implanted seven blue magatama beads (mitamas) into his body. This mutation granted enhanced physical abilities: superhuman strength, blade generation from his arms, and exceptional agility. It also altered his physiology, manifesting as olive hair, cat-like pupils, and green, chlorophyll-containing blood. Orochi charged him with guarding Kaede Kunikida, a Kushinada descendant whose blood pacifies Aragami. Following Kaede's apparent death, Kusanagi rebelled, seeking freedom by targeting her twin sister, Momiji Fujimiya.
His mission to kill Momiji faltered when Orochi attacked her, unexpectedly triggering Kusanagi's protective instincts. He intervened, saved Momiji, and subsequently allied with the Terrestrial Administration Center (TAC) to protect her. This shift initiated a complex relationship with Momiji, marked by teasing about her appearance yet defined by deepening mutual reliance. Kusanagi abandoned his goal of killing Momiji, dedicating himself to her safety as they battled Aragami threats. During the conflict against the eight-mitama-wielding Murakumo and the resurrected Kaede—who sought to purge humanity with the god Susanoo—Kusanagi received an eighth mitama from Momiji after her rescue. This augmentation equalized his power with Murakumo's and cemented his role as Momiji's protector.
In the OVA *Blue Seed Beyond*, set two years later, Kusanagi faces new challenges. His relationship with Momiji strains due to fears that his Aragami-altered biology could endanger her during intimacy, causing him emotional distance. He continues collaborating with the TAC to combat bioengineered Neo-Aragami in San Francisco, confronting a renegade scientist behind their creation. The OVA introduces Valencia Tachibana, a human similarly implanted with a mitama, reflecting shared experiences of mutation and alienation. Despite ongoing tensions with Momiji, Kusanagi reaffirms his commitment to her protection while grappling with the physical and emotional risks their bond entails.
His name reflects his arc: "Mamoru" meaning "protector," and "Kusanagi" referencing the mythical sword Kusanagi-no-Tsurugi (Grass-Cutting Sword), symbolizing his transition from an Aragami weapon to humanity's guardian.
His mission to kill Momiji faltered when Orochi attacked her, unexpectedly triggering Kusanagi's protective instincts. He intervened, saved Momiji, and subsequently allied with the Terrestrial Administration Center (TAC) to protect her. This shift initiated a complex relationship with Momiji, marked by teasing about her appearance yet defined by deepening mutual reliance. Kusanagi abandoned his goal of killing Momiji, dedicating himself to her safety as they battled Aragami threats. During the conflict against the eight-mitama-wielding Murakumo and the resurrected Kaede—who sought to purge humanity with the god Susanoo—Kusanagi received an eighth mitama from Momiji after her rescue. This augmentation equalized his power with Murakumo's and cemented his role as Momiji's protector.
In the OVA *Blue Seed Beyond*, set two years later, Kusanagi faces new challenges. His relationship with Momiji strains due to fears that his Aragami-altered biology could endanger her during intimacy, causing him emotional distance. He continues collaborating with the TAC to combat bioengineered Neo-Aragami in San Francisco, confronting a renegade scientist behind their creation. The OVA introduces Valencia Tachibana, a human similarly implanted with a mitama, reflecting shared experiences of mutation and alienation. Despite ongoing tensions with Momiji, Kusanagi reaffirms his commitment to her protection while grappling with the physical and emotional risks their bond entails.
His name reflects his arc: "Mamoru" meaning "protector," and "Kusanagi" referencing the mythical sword Kusanagi-no-Tsurugi (Grass-Cutting Sword), symbolizing his transition from an Aragami weapon to humanity's guardian.