The dark elves clearly did not expect Rui to succeed, which was likely one reason that they had agreed to teach him the Nature Path and some of their secrets. They had no idea about what Rui intended to do to overcome this impossible hurdle of not having the genes that allowed for nature manipulation to whatever extent.
Unfortunately for them, Rui had already come up with several options.
"I could just alter my genes to become partially elven," he murmured. "That is feasible and would even save me on having to use my immortality technique."
'…That sounds disturbing. Is your attachment to humanity that low?' Mother Alicia asked with a touch of concern.
