Identified as the Fourth Primogenitor, a legendary vampire spreading calamity in Japan. His true identity is the central mystery encountered by the dispatched Sword Shaman.
Close sibling bond characterized by mutual care and shared family history.
Core allies and mutual protectors who navigate supernatural threats together from the first season onward.
Trusted classmates and tactical partners who balance academic life with supernatural defense.
Powerful ally and mentor who provides magical support and political backing.
Key political and military ally enabling Kojou's territorial claims.
Primary rescue mission driving the final season's narrative.
Spiritual ally who provides critical magical support and safe havens.
Tactical partners who rely on each other's unique magical and physical capabilities.
Mutual rescuers who form a pragmatic alliance across conflicting factions.
Formerly rebellious familiar who reestablishes subordinate loyalty.
Fellow combatants who coordinate movements and seek refuge together.
Acquaintances who develop mutual respect through shared combat experiences.
Explore the full interactive character relationship map of Strike the Blood