I Am the Only One in the Whole Universe Who Can Cultivate Immortality

In the interstellar era where everyone can only practice martial arts and transform, I am the only one who can cultivate immortality. It's not that I have no opponents, it's that they don't know anything about my power. Hiding yourself within the rules is the greatest wisdom. In the examination room, Xingchen lay in a transparent cabin, and various probes were attached to his body one by one. Behind the glass cubicle, several researchers were staring at the screen. Professor Zhang stood in the middle, his hands in the pockets of his white coat, his eyes unblinking. "Start." Professor Zhang said. The instrument started up and a slight buzzing sound sounded. Stardust felt a weak electric current sweep through his body, and a fine tingling sensation appeared on the surface of his skin. He closed his eyes and his mind sank into his Dantian.