The Enlightened Master Crouching Cow
The best part of this novel is that the MC don't really know the future. He has bits of information. Theory: I suppose that his system is his own future mind that folded himself with past knowledge in a way that he could easily understand. Those healing powers are nothing more than a amount of energy that he could bring back to nurture his plan. That way there isn't a system. It is nothing more than a self nurture method for execute his own future plan.
Firstly, it is rare to see MC get lectured by someone his age and actually gain some knowledge or do some self reflection after the convo. Luo Hai is great! Secondly, holy macaroni. We are getting hints about MC's transmigration. Is it intentional or not? Is it out of good will? Is it caused by other worldly beings with supreme intelligence or caused by superhumans? What the deal with the system and where did it come from? This is getting more exciting!!