Sarriel had every reason to think Ryu to be a madman. She had explained clearly how dangerous the Chaos Plane was, how could he just jump in without regard. Did he really think himself to be better than her Ancestors?!
Ryu, though, didn't seem to hear Sarriel's shout. His robes fluttered, his gaze sharpening as he seemed to fall through reality itself. For a moment, he found it difficult to tell which way was up and which way was down, even left and right became impossible to decipher.
For Ryu of all people to undergo a moment of disorientation to that level, it could only be said that the travel across planes was not a simple one by any measure of the imagination.
By the time Ryu's vision cleared, he found himself in a world completely inverted to his views. It was as though he had <Rob the World of its Color>, but he was certain that he hadn't. If he had on such a scale, he would have most definitely felt the drain.