Do you think the world you know is everything? No.You dont. The real world. The cruel, real world that lurks behind the surface of the world.

[You have caused too much suffering in the world of martial arts.][Please continue to make the world happy.][You will be reincarnated in the year 20XX in South Korea.]Happiness?I only know revenge and pain!Thats when it began.The beginning of a happy worl

At the beginning, betrayed by your fiancée and on the brink of death, you watch as she throws herself into Feng Aotians embrace. In despair, the system upgrades to the strongest revenge version—the Happy Life System.Travel through different worlds and e