Capricorn

Taku Shimamura, a high school student, is unexpectedly transported to Slaffleaze, a world governed by intelligent creatures. The ruling class, led by Zolba, is planning an invasion of Earth, known as Capricorn, and Taku must join forces with the oppressed peasants to stop them. To achieve this, Taku needs to gain the trust of the last remaining Yappie, a dragon and the ancestral guardian of Slaffeaze, who is also the last of her kind.