Five sect wooden tokens, five mortal senior brothers. Tuan Zi, a young girl from the Medicine Valley, obeys her master's order to carry tokens down the mountain to search for her five displaced senior brothers and bring them back to the Medicine Valley. Carrying an old bamboo medicine basket filled with herbs, she tightly clutches amber candies saved from her usual daily portions in her pouch, unwilling to use a single one selfishly along the way, all reserved to share with her senior brothers upon meeting. Along the journey, she cures chronic illnesses and calms plagues, astonishing the common folk who praise her as a little divine doctor. Yet every time she reports her senior brothers' names and displays the wooden tokens as credentials, people around her instantly change their expressions, solemn and bowing deeply. Still innocent and following the trail step by step, she is completely unaware that the impoverished senior brothers she worries about are all supreme figures feared by the world.