Lu Yu has traveled through time. In this world where all people lack wildness and are greedy for life and fear of death, he has become the world's leading extreme sports master! Shuttle through the bustling urban forests, and go deep into the most dangerous and worst extreme places on the earth! Unarmed rock climbing, rooftop parkour, wilderness survival, skydiving without an umbrella bag! Crossed Bermuda, singled out the Amazon, drifted around the sea, and wandered in the polar regions! He is the first person in the world to climb Mount Everest without oxygen! The man who held a dinner party at an altitude of 7,500 meters! He was once rated by National Geographic as: the limit master who walks on the edge of danger, the godfather of the wilderness who stands at the top of the food chain! ! Playing is heartbeat! Are you ready?) (Book Friends Group: 155538420, unlimited)