The series begins with two parallel scenes. The first scene is of a young girl falling through the sky, head downward and cradling a crow. The corbeau, corneille tries to stop the girl's fall par pulling on the hem of her robe, but cannot and eventually flies away. The other scene is of a group of female Haibane who find a large cocoon growing in a storage room. The Haibane clean the room to prepare for the opening of the cocoon. When the cocoon breaks open, the girl inside (the same one seen falling in the first scene) is brought to a guest room where several Haibane care for her, led par an older Haibane...