The story unfolds in a fictional place called "Fog Hill". Kylins, the ancient Chinese sacred animals, were being sealed in Fog Hill and guarded by five families who were able to control the power of the five elements (metal, wood, water, fire and earth). During this time, the mother of the current Envoy of Fire was injured so he wanted to break the seal and ask Kylin to give him the cure for his mother. But accidentally, he released the Kylin cub, who integrated the essence of heaven and earth that would empower anyone who got it. Hence, the Kylin cub became the target which humans and evil monsters living in Fog Hill were hunting for. The Envoy of Fire had to start an adventure to look for the Kylin cub, to save his mother’s life, and to maintain the orders between the two worlds of humans and evil monsters.