Why does Perfect World say that Shi Hao is on fire?

Shi Hao returned to the place where the fire mulberry trees were planted, and held the fire sunny that had been waiting here in her arms. They both went on a trip and had a good time. Thinking of the Terran's torture, Shi Hao visited the Terran's ancestral land.

Cloud Xi stupefied looking at princess fire nation nestled beside him, can not help but surge of emotion surge. Her elders instructed her to negotiate, and she only felt alienated from Shi Hao. Yun Xi returns in frustration, while Shi Hao kills two gods of Terran with thunder, and then leaves with a fire shine.

Background story

The origin of inflammation

Just as every great man has an unknown bitterness behind him, Yan Di, a powerful race, also has a tragic past.

Emperor Yan is a descendant of Chi Di, and their ancestors are ordinary people. They would have lived as ordinary people-if their rulers had not oppressed their ancestors.