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Kokodake no Himitsu

Finished

ここだけの秘密

Mari Kurusu finally gathers the courage to confess her feelings to her classmate Kuro Rouzen by giving him a love letter. To her shock, he eats it instead of reading it. Convinced this is a rejection, she decides to follow him after school to find out the truth.

Her stalking leads her to witness a terrifying secret: Kuro is not an ordinary student. He battles monstrous beasts and possesses strange tentacles that emerge from his head. He is part of a top-secret organization dedicated to protecting Earth from hidden threats. When he discovers Mari knows his secret, he takes her to the organization to have her memories erased. For reasons unknown, the organization chooses not to wipe her memory, leaving her entangled in a world of danger and secrets.

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