Too Many Dead in Chaotic Times? My System Activates!

(Rating just released, will increase later) In the final years of the Great Jing Dynasty, demons and monsters appeared, throwing the world into chaos and leaving the people with no way to live. The incompetent ruler and corrupt officials caused the dynasty to collapse, with warlords carving up territories. Some gangs poisoned one area, treating the populace like pigs and dogs. Some cults incited rebellion, plundering the people's wealth, food, and children, waiting for an opportunity to revolt. Some powerful clans raised their banners, turning into rebel armies, burning, killing, and looting everywhere. Great droughts, floods, locusts, earthquakes, and other natural disasters descended, further plunging the people into despair and wailing. At this time, Wang Sheng transmigrated into this chaotic world, into the body of a youth who had been drained dry by a beautiful woman. He had a drunken father, an orphaned mother, and the lowly status of a servant. Just as Wang Sheng was contemplating lying flat, thinking he might as well continue to enjoy being exploited by the woman, his golden finger, 'Heaven Rewards Diligence,' arrived. Heaven Rewards Diligence: Learning will surely succeed. By studying any skill, one can succeed through effort. Thus, Wang Sheng unreasonably enhanced himself with various martial arts supreme skills. His physique rivaled mountains, his muscle knots were denser than hair, his bones were sharp as knives, and his tendons and skin were tough as steel. "I understand now. Immortals are people as large as mountains, like me. Can a thousand soldiers and horses withstand a single punch from me?" "I saved the common people, they should call me an immortal. Why do they call me a monster? Oh. Only humans call others immortals. They are the ones crying thief while holding the stolen goods. They are the real monsters!"