A Family's Cultivation of Immortality Begins with Becoming a Clan Stone

[System, group portrait, farming, not the Holy Mother, not a cool article] Zhang Song, a college student in science and technology, died suddenly after staying up late to review, and traveled through time to become the clan stone of Chengjia Town. In this world, there are immortals who live forever and look high above, and there are mortals who are struggling with their lives like floating ducks. See how Zhang Song leads the small mountain village on the side of Qingguan Mountain to become an eternal clan of immortals. Ps: (The protagonist has few scenes, mainly describing how the Cheng family transformed into an eternal clan of immortals step by step)