Rui couldn't help but be surprised while the others were alarmed.
He did not know that there were creatures out there that embodied his Martial Path as a genetic trait. That sounded incredibly difficult to achieve. Evolution worked by the principle of survival of the fittest. The fittest survived, and the fittest reproduced. It naturally meant that any species that evolved maintained a coherent and constant physiology as a result. He didn't understand how a creature that evolved to evolve could possibly exist.
Then again, he knew that his framework of evolution was based on Earth, which was a much more grounded and less fantastical planet. The presence of esoteric substances complicated any and everything. Every ounce of scientific theory was no longer applicable one-to-one to the world of Gaia due to its presence. The more Rui learned about what could be done with esoteric substances, the truer this simple fact became.