Manga by author The speaking pork trotter

Description : After the revivification and return of the spirit energy, men and women did their best to capture every strands of spirit energy and train, except Lu Shu, with his Negative Emotion System, he becomes stronger by taunting others! He only wanted to protect his younger sister, but the change of an era in unavoidable, then all he could do was to taunt others in passing, and become the strongest! Then, are you ready? Here comes Lu Shu, The Great Demon King'~

After a great catastrophe stuck, humanity started living in anarchy. Acid rain floated across the sky, wild wolves roared in the wilderness, the consortium in the barrier sang night after night, and the refugees outside the wall were hungry and cold. "Ren Xiaosu", who was born as a refugee, unlocked the palace system, and continued to grow stronger by absorbing positive energy, fighting for survival, protecting relatives and friends, saving sentient beings, and gradually changing the world, becoming the dawn of mankind's future. this is a brand new story survive the darkness, see the light.