The Rukai (Drekay) society is characterized by a social class system formed upon a well-defined division of labor and blended with marriage, politics, religion, worshipping, and art. With the lily as the “symbolizing flower” for purity, bravery, courage, and honor, the right to wear lily ornaments is a core value of the Rukai culture. Foxtail millet is its principal economic crop, leading to the irreplaceable millet harvest festival. Currently, the Rukai population is about 13,465 people (as January 2020).