Leng Chang, as his name suggests, is recognized as the "King of Leng Chang" in the world of beast control, but he unexpectedly awakens a strange golden finger - as long as he tells a cold enough joke, he can make the monster laugh until it breaks down and sign a contract. In this era where violent beast trainers rule the beast-controlling circle with whips and roars, Leng Chang has forcibly carved out a path of beast-controlling with a mouth and a belly full of bad jokes. Others rely on coercion to control animals, but he relies on homophonic jokes; others rely on beatings to tame animals, but he relies on telling jokes. Facing the flaming lion who has a hot temper and shoots fireballs when he disagrees with him, he said "Do you know why lions don't eat vegetarian food? Because they are carnivores", which made the flaming lion laugh on the spot and put on the collar obediently. Let's see how the cold king conquers all beasts with his cold jokes and becomes the most outrageous legendary communicator in the world of beast control!