Seal of Gods and Demons

The talent of a magician is determined by the fit between the body and the magical elements and the strength of the mental power. The seal on his body prevents Xiuda from having any fluctuations in magic elements, but by using the power of the seal to seal items with fluctuations in magic elements, he can increase his mental power. So Xiuda took another path... What is a seal? What are gods and demons? In the corner of the world, there is a land of white snow and ice. The story begins here...