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Blood Null

血液ヌル

Touma Akagawa suffers from constant anemia, a condition that makes his daily life difficult. One day, a freak accident leaves him infested with an alien blood parasite that takes root in his body.

Now hosting an extraterrestrial organism in his bloodstream, Touma finds himself transformed into an unintentional protector of Earth. The parasite grants him strange new abilities, but also attracts dangerous attention from forces that threaten the planet. With his own health already compromised, Touma must navigate this bizarre new reality and figure out how to survive—both for himself and for the world he never asked to defend.

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