The World Is in Disarray

This is a world where "jokes can kill". Here, the higher the laugh, the stronger the magic. Some people tell cold jokes to freeze their enemies, some people use homophones to summon gods, and some people use "hell jokes" to open the door to the underworld. The protagonist is a person who is born with a great sense of laughter but cannot tell jokes - he laughs at everything he hears, but when he tells a joke, the color of the world changes and all living beings fall silent. He is considered the "Son of Laughter" and legend has it that whenever he opens his mouth, the world will restart in embarrassment. As a result, he was hunted down, enshrined, studied, and invited to be the ultimate weapon of the "Joke Review Bureau". But he only wanted to know one thing: "What did I say that silenced the whole world?"