Firiel Dee is a 15-year-old girl who lives with her poor foster parents in the remote mountain highlands of Sera Field. One day, she is... more>> invited to go to a ball, only to discover that she might be the heir to the throne. Soon, Firiel and her friends decide to partake in a quest for the truth, unaware of the dangers that await them. <<less

Ever since they've lost both of their parents in a car accident, Kazuki has been supporting her adopted younger sister Mirai. Even as another tragedy... more>> strikes, Kazuki's promise to never leave her side is kept, albeit in a different way than Mirai had imagined. <<less