Maple is Leo's daughter, born from the wishes of a Feta couple who wanted nothing more than to start a family. Leo had agreed to help them, but was unable to help them conceive by his regular methods. With permission to help manually, he helped the couple fall pregnant. The husband tragically died before Maple's birth, and the mother died during said birth. Leo found Maple underneath a maple tree, and upon discovering that this was, in fact, one of his own children, he immediately took her in and began raising her.

Maple sees herself as different than the other females in the Feta Valley, and is usually unsure of herself. She is quiet and polite, and approaches life with a very reserved and shy demeanor. Despite her size and demeanor, Maple is an adult at 18 years of age.