My Healing Skills Have Mutated

After being reborn in another world, Lu also gained a system. All creatures had health bars in front of him, chickens had 3 hp and pigs had 100 hp. Wang Erdan's HP is 130. He is also given a common skill called healing. However, his healing technique is different from the others. The healing technique at lv1 restores 30% of the health bar. And he also discovered that there are two dark branches in the healing interface... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.