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AiON

碧海のAiON

After losing both parents in a sudden accident, high school student Tsugawa Tatsuya is left adrift, burdened by a vast inheritance and his father's final wish for him to become a man of great character. Still grieving, he encounters the enigmatic and aloof Miyazaki Seine, a girl who seems to invite bullying. Despite her cold warnings to stay away, Tatsuya feels compelled to help her.

He is soon drawn into Seine's hidden world, where she hunts parasitic sea creatures that infiltrate and control human hosts, compelling them to commit acts of hatred. Seine possesses an immortal body and a beast named AiON, which she uses to lure and devour the parasites from within their victims. A natural, violent impulse forces her and the bugs to seek each other's destruction.

As Tatsuya becomes entangled in this deadly conflict, he must navigate a dangerous reality far removed from ordinary life, driven by his desire to stand by Seine and understand the terrifying truth she battles.

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