"Where there is light, shadows lurk and fear reigns... yet by the blade of Knights, mankind was given hope..."
Garo focuses on the life of Makai Knight Saejima Kouga, who protects humanity against their own dark demonic manifestations called "Horrors". In his quest to purge them, he encounters a young girl named Kaoru whom he saved from a Horror, but was stained with its demonic blood. As a rule, those that been stained by the blood of a Horror shall be cut down, or else they will die painfully in approximately 100 days. Kouga takes mercy upon her and tries to find a way to purify her before her remaining time expires. ( original from wikipedia: [link]