Lex's mood dropped as he considered the ramification of the immortal words. The inscriptions had become a part of his body, and at the moment were not really harming him in any way. It was only if he tried to become an immortal that they would pollute his body, according to what the Celestial had informed him previously.
Yet at the same time, even for a Celestial, it was not simple to remove them. No wonder the system had never picked up on them. Even his tumor, although a part of his body, was actively harming him.
"But worry not," the immortal continued. "Although it is not simple, all it requires is a little preparation. I can still do it. Actually, if I wasn't concerned about not harming you, it would be easy to remove the inscriptions. They are not that strong. It's just maintaining your health that is the complicated part."
"Well I'm glad you are concerned about my health," Lex said wryly. It would be quite problematic otherwise.