In a world of elusive immortals, Li Nianfan, a mortal, descends into the world of cultivation. After learning that he's hopeless at cultivation, he just wants to live a peaceful life. But unbeknownst to him, the dog he adopted becomes a powerful demon king, suppressing a world, just from watching him write poetry and paint. The trees he planted behind his house become the world tree, supporting the heavens and the earth, just from listening to him play music. A stranger he met becomes a saint of the immortal path, leading an era, simply from his casual guidance. Looking back—it turns out that the person who always pestered him for his calligraphy...