I'm Actually a Cultivation Bigshot Novel

Li Nianfan, a mortal in a world where immortality is elusive, desires only a quiet existence after realizing his own inability to cultivate. His peaceful life is unexpectedly disrupted by the profound impact of his simple actions on those around him. His adopted dog transforms into a generation's demon king, capable of dominating a world after encountering Li Nianfan's poems and paintings. A backyard tree, exposed to his zither music, evolves into a World Tree, bridging the heavens and earth. Casual encounters lead to enlightenment; a passerby he advises becomes an immortal sage guiding a generation. Upon reflection, Li Nianfan discovers that a persistent scholar seeking his calligraphy and art, despite his poor chess, is actually a chess saint from the Immortal Realm. Furthermore, the beautiful woman who visits nightly to hear his music is revealed to be the foremost saintess of the Immortal Realm.