Kuu-chan and her twin sister Pii-chan are Gods of Sexual Love sent from heaven to help Natsu build relationships, fall in love, and lose her virginity. They dress in the Gothic Lolita fashion. Kuu-chan likes eating and drinking weird and often very spicy things such as peppercorns and tabasco. She helps her sister, but most of the time seems very dumb and makes life difficult for her sister. When she does do something on her own initiative, she is much more affective then her sister.