Either plot convenience or he couldnt advance anymore.
At that time, Patriarch Liu He was only at the peak Unity Stage, a step away from the Mahayana Stage. As a Mahayana Stage Immortal, he would have an almost limitless lifespan; half a step away from being a True Immortal. However, he had never made this step; he instead spent the last one hundred years of his life creating spirit roots for mankind.
Eastern · His Majesty the King
If he had advanced he would get a lot of time,but he didnt so he died of old age.
At that time, Patriarch Liu He was only at the peak Unity Stage, a step away from the Mahayana Stage. As a Mahayana Stage Immortal, he would have an almost limitless lifespan; half a step away from being a True Immortal. However, he had never made this step; he instead spent the last one hundred years of his life creating spirit roots for mankind.
Eastern · His Majesty the King
The translation after chapter 40 is horrendous.It's absolutely insanely bad,its like the translator used MTL and just edited it a bit,and i feel like that's exactly what he did.
Outside Of Time
Eastern · Er Gen