The ancestral spirit house is the most sacred place for the Paiwan people. Each clan has its own ancestral spirit house. During the millet harvest festival and the five-year festival, people from the same clan will return to the ancestral spirit house to reunite. In addition, each tribe has its own ancestral house. During the festival, priests, shamans, and leaders perform various ceremonies there, and outsiders are not allowed to participate. The ancestral spirit house is built with stone slabs. Except for the most important ancestor statues, there is almost no other furniture inside the house. Only wooden frames are nailed to the surrounding walls, on which are placed precious earthen pots, copper pots and other collectibles. In addition, vine balls and sharpened poles from the five-tear festival, tusks of wild boars, skulls, eagle feathers, claws, and teeth of the bears are also collected in the ancestral spirit house to pass on to future generations. There are two ancestral houses in Kulou Village. The earliest cinekecekan is located at the turning point of Zhongshan Road. Later, due to the increasing population in the village, the hunting ancestral spirit house (rusivawan) was added on the side of Zhongzheng Road.