Sagara is a military man in Japan. He received permission to establish the Special Dragon Unit. This unit was formed to combat dragons, which were believed to be nothing more than horrible monsters intent on murdering humans. Sagara also witnessed the death of one of his teammates during a battle with a dragon that had no choice but to defend itself. As a result, he developed a deep hatred for all dragons and could not change his ways until the demons descended and began destroying mankind. After seeing the remains of many of his dead comrades, he changed his thinking and started fighting against the demons. He gained a sense of justice and was able to remedy his ways somewhat when he protected Riko and Carmines route to the Demon King so that they could take flight and finish the fight.
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