As Roy began continuously compressing his magic power, his body gradually showed some special changes.
The most notable thing was his feet. Roy did not know what happened to them, but every step Roy took now left a black frost footprint the same size as his feet on the ground!
In particular, when he walked on relatively hot ground, the frost footprints would evaporate from the ground heat and cause a mist to curl up.
This phenomenon was very strange because Roy was certain that he had not deliberately focused his magic power on his feet. But even so, when he did not control it while walking, it caused a series of frost footprints. It usually took five to six minutes before they slowly dissipated.