Sovereign of all the heavens, look for the eternal throbbing feeling

It is about a middle-aged man, who in his world conquered all martial arts. I win and kill thousands of people with their profound power, being at the top of the food chain, has achieved everything and experience everything, but his heart feeling dissatisfied with these achievements unleashes a deep and mysterious feeling that makes him sad and lonely. that feeling that constantly beats his heart, letting him know that something else is missing, the more he thinks about all this, the more lost, desolate and angry he is at the point of not knowing what to do. Here ends the life of this powerful and proud warrior? Will there be salvation or miracle for this ruthless being? Discover it together with our protagonist in this search of this strange feeling that resides in the depth of his being.