I Thought I Was a Mortal, but My Disciples Said I Was a God

Chu Yun traveled to the age of cultivating immortals, became the head of a small mountain village, and activated a "daily sign-in system." Others signed up for immortal cultivation techniques and god-level magic weapons, but he signed up for cooking, piano skills, calligraphy and painting, medicine... Chu Yun: "System, are you kidding me? I want to practice immortality! I want to live forever!" System: "Ding - get [Elementary Cooking Skills], and the meals you make can skyrocket your cultivation level." He thought he was a mortal, cooking just home-cooked food, and playing the piano just casually... Until one day, he discovered that: the meals he cooked casually were regarded as "fried rice with eggs from the God of Cookery"; the tunes he played casually made people collectively enlighten; the paintings he drew casually could actually form formations; he taught people to write, and the words revealed the meaning of the sword... The villagers: "The village chief is the hidden ancestor!" The disciples: "The master is the strongest in the world of immortality!" The major sects: "Please come out, senior!" Chu Yun: "I'm really just a village chief!