Thianso, an orphan who fate played a joke on, was separated from her family as a child. One day, Thianso learns the truth: her mother Rungarun was an employee in Mae Jansri's weaving factory now missing without a trace. In the search of the truth and her mother, Thianso decides to get work in Jansri's factory. With the assistance of the factory's manager Phuwadol and a single clue in the pattern of a sarong, will Thianso manage to reunite her family?