Heavily Wounded with One Punch

"When one reaches the peak of youth, the aura of death isn't conspicuous. Their vitality is robust, suppressing the deathly aura. However, as they age, this aura grows stronger. When it permeates their entire being, it signifies the end of their life," explained the death banished immortal.

"Hence, beings of all races must confront life and death during their cultivation. This stage is known as the life and death realm. Beyond it lies the possibility of eternal life."

…

The death banished immortal's words were blunt. 

The life and death realm wasn't as straightforward as it sounded. 

Even saints, extreme saints, and holy masters didn't perceive the death aura within them.

"For you, Braydon Neal, this realm is distant," the death banished immortal continued coldly. "Yet, when you reach it, you'll break through effortlessly. I'll safeguard your body, converting any death energy you produce to nourish me."