Meroie is a supporting character from the first One Piece television special, Adventure in the Ocean's Navel. She has short, dark indigo hair and navy blue eyes. Her attire consists of a shaggy, furry brown and beige shirt paired with bright green pants. Meroie's most defining trait is her caring and protective nature, which led her to become the guardian of a young boy named Hamu after his mother was killed while defending their village. She lives in the mysterious location known as the Ocean's Navel, a city situated within a whirlpool that is under threat from giant monsters. Her primary role in the story is to look after Hamu and assist the Straw Hat Pirates in their efforts to deal with the monsters and the treasure that lies within the area. Meroie does not display any special combat abilities or supernatural powers; her strength lies in her devotion and nurturing attitude toward those she protects. Her relationship with Hamu is the central emotional anchor of her character, and she is motivated by a desire to keep him safe and preserve their home. Throughout the special, she remains a steadfast, if minor, ally to the crew, though her personal arc does not undergo significant development beyond her established role as a caretaker.