Lady Amarantha (レディーラブラタ) is a member of The Hakuri Pirates, she is a division commander and the leader of the Mother’s Four Guardians. She was a former world noble’s daughter, often called a princess and lady among the nobles. But since then rejected her name, birth place and lifestyle, to become a pirate. After seeing how Demetrius D. Xavier does battle, she wanted to join him and become part of a massive crew. She was granted her wish, because of her dominating traits and will. She has been placed in charge of guarding the central parts of the Mother Hakuri, along with her unit.