在一个幻想中美的彝族村庄里,小咪依噜因父母意外车祸而失去家人,与曾经未见过面的外公罗老爹共居。 village life intensifies her longing for her mother. Inspired by their teacher, students are tasked to write letters to their dearest people. Moved by the child's yearning, an American girl named Sara starts penning heartfelt responses, unaware of the true identity behind them. Eventually, little Pauly finds her mother in heaven and reveals the truth to Sara. Touched by the purity and sincerity of the Yi tribe and their culture, Sara decides to leave her white-collar job to teach in this enchanting village, bridging two worlds together.