Ice Jade Crystal
Ryu's bones and skin began to glow a comforting, shimmering light. In the next moment, his veins and arteries followed suit. Given the amount of light coming off of him, it should have been irritating to the eyes, but somehow, that couldn't have been farther from the truth.
One had to understand that although Ryu's Ice Jade Crystal Body was known as a Bone Structure, bones were inextricably linked to the circulatory system. There was no shortage of stories where geniuses were born with domineering bloodlines, but couldn't support its potential with their weak Bone Structure.
Why was it that Ryu could have four seemingly opposing bloodlines in a single body? It was precisely because his Bone Structure was known for its perfect balance. There was likely not a single other Bone Structure in existence that could accomplish what Ryu's had.