Kuu

As the most energetic member of the older Haibane group, this cheerful spirit has shared a close bond with Rakka since her arrival at Old Home. Driven by an insatiable curiosity, she often ventures into mishaps, such as crashing a scooter or tumbling down stairs while experimenting with others' belongings. Though she occasionally works at a local cafe for sugar cube wages, her true nature lies in her adventurous, wide-eyed approach to life and her deep, sisterly affection for her friends.