(Un)Graceful Cat

Fifteen year old Amelia Fafnir was born into a high-class family, but she has had zero confidence ever since her mother cancelled her piano lessons and told her she had no talent. However, a shocking truth suddenly rattles her daily life. The home economics room is the base of operations for the Spirits (humans who have died with regrets and remain in the world until their regrets are erased). However, their sworn enemies are the Dark Fairies (evil beings who take advantage of human weaknesses) and their target is Amelia. Who should she trust? Which side is "good" and which is "evil"?