In a world of high-level martial arts where force is the most important and there are numerous sects, the family of Mo Jinghong, a grassroots young man, was wiped out, and he was able to survive with only the fragments of his family legacy, "The Art of Smiling Heaven". Fortunately, Su Ling'er, who is both skilled in medicine and martial arts, and the prodigal swordsman Li Qiuchi accompany them all the way. The three of them smile through the thorns, break through strange doors, enter secret realms, tease powerful enemies, and gradually uncover the shocking mystery behind the world about the origin of martial arts and the righteousness of their family and country. Laughing all the way, sweating all the way. Until the end, in the face of power and darkness, they tore the sky apart with sincerity and passion, and wrote their own path of laughter.
