I'm Actually a Cultivation Bigshot

The Immortal Dao is ethereal, and Immortals are hard to find. Li Nianfan had descended into the cultivation world as a mortal. After learning that he has no hope in cultivation, he only wants to live a peaceful life. However… The dog he adopts becomes a demon king of a generation when it sees his poems and paintings. It manages to suppress an entire world. The tree he plants behind his house becomes a World Tree after listening to his zither music, forming a bridge between heaven and earth. He meets a passerby who is enlightened by him and becomes an immortal sage who leads an entire generation. When he looks back: It turns out that the scholar who had been pestering him for his calligraphy and paintings despite having crappy chess skills, is a chess saint from the Immortal Realm... Source: Qidian