Zhao Kuang, a wild little gangster who lives on the streets, relies on his fierceness to make a name for himself in the slums. One day, he was captured by a mysterious organization and taken to an underground base, where he became a test subject for a "humanity experimenter". After being injected with the werewolf serum, Zhao Kuang discovered that his genes had mutated. Not only could he transform into a werewolf, he also gained an incredible system - [Laughter Value System]! Every time he completes a task or humiliates an enemy, he can accumulate the ability to exchange for laughter points.
This secret base is controlled by a group of mad scientists who use "humanity experiments" to test people's psychological limits in extreme environments. Zhao Kuang thought he was just a guinea pig, but unexpectedly discovered that there was a shocking secret hidden deep in the base: the werewolf serum he injected was the only power that could fight the coming "bloody natural disaster."
Zhao Kuang's real idea is very simple: I don't want to be a savior, but since you insist on using me for experiments, then I will turn the entire base upside down! When others collapsed in despair, he fought back while laughing wildly. This crazy little gangster has become the most feared existence of all experimenters, and has also become the last hope of some people. He wants to fight his way through the base and continue to be his street fighter when he gets out - saving the world on the way.
