Fantasy: I Can See the Health Bar

The male protagonist travels to another world and finds that he is seriously injured and has lost all his cultivation. But you can see the health bars of other creatures, and gain a lot of experience and attribute points by killing them. After the male protagonist understood the rules, he looked up at the demon god who was in seclusion in front of him, with his blood volume declining day by day, and showed a harmless smile... This book is also called "Fantasy: Don't Run!" I see you have residual health", "Fantasy: Give the thickest flesh and get the hardest beating", "Fantasy: Your blue bar is not qualified to fight me"