Percentage Damage at the Beginning, Killing the Emperor with One Punch

Gu Changsheng traveled through the fantasy world and became the third prince of the Longyuan Dynasty. However, due to the mysterious power, Gu Changsheng's memory was blocked, causing him to be abandoned since he was a child. Now he is just a handyman disciple in Tianling Cave Mansion. Activate the god-level percentage system at the beginning. Everything in the world can be percentageed, even damage! He spent countless years building the system and enhancing the percentage! One day, the percentage reaches its upper limit. No matter who he is, he is a great tribulation master or a holy realm or a great emperor! I'll kill them all with one punch! … The Longyuan Dynasty is in chaos. The rebellious ministers and traitors have joined forces with the outside world to defeat the Longyuan Dynasty and gain the lifeline of the dynasty! Troubled times are coming, and everyone in the dynasty is terrified and their lives are unstable. All the emperors came together to surrender to the Longyuan Dynasty, just for the Dragon Vein! However! Just when the Longyuan Dynasty is about to fall! Gu Changsheng's divine veins were activated and his memory was unlocked. He returned to the dynasty with the Nascent Soul stage and stood alone in front of the emperors. While the emperors were laughing, Gu Changsheng just punched out. The emperors were silent and started the era of emperor fall with his own hands!