Zildren is Freya's sister. He acts as mainly the comedic relief of the team, one who cares deeply about friends, families, and allies, but can forget completely about things when it comes to greed. He's a treasure fanatic, hence why he left his Kingdom to go on an adventure in hopes of finding treasures.

He blames himself for the downfall of his kingdom, saying that if he stayed that the Kingdom would still be there. Although, both Freya and their mother know that not even his help would've been enough.