Noel Wreathlit

Japanese name:	リースリット・ノエル
Nickname:	Fiacca, Wreath

A mysterious being from the moon, Wreathlit, generally known as Wreath, appears to be a young child but is actually much older. She is constantly watching Feena, especially in Feena's story path where she is in love with Tatsuya; a voice tells her that the moon and earth must not be united.

Wikipedia