Although Chen Long possessed heaven-shaking battle prowess, he was still of mortal flesh and blood, equipped with internal energy rather than divine power.
Martial artists could not attain longevity; this was an immutable law of the Void Boundary Heaven. He had survived until now solely because of Lin Bei's system.
Yet, as a mortal, he still needed to maintain basic physiological functions, with breathing being chief among them.
Chapter 427