Yamato Agari is the main protagonist of the series along side Ultimo. Yamato has the same name and appearance as a bandit from the Heian period, whom he is reincarnated from. In the twelfth century, he considers the corrupt nobility evil and opposes them. He first meets Ultimo and Dunstan in this past life. The twenty-first century Yamato does not appear to be very bright, as his friends often joke about him. He is impulsive, and tends to yell when he speaks.
His facial features comprise simply of medium length brunette hair, that is arranged with a prominent and spiked fringe commonly swept to one particular side, and equally dark brown eyes.