Marie

A mermaid (mermaid) Xenos. Because her lower body is that of a fish, she cannot leave the "Water City" in the lower levels of the dungeon and stays behind. Since she is usually alone while Lido and the others are out, she feels a sense of goodwill towards Bell, who was kind to her despite meeting for the first time. Although she is not newly born, her behavior is childish, and unlike Lido and the others, she is very curious, giving Bell the impression of a spirit. Like normal mermaids, she possesses the power of charm through her singing voice and overwhelming speed underwater, but due to her personality, she is generally not good at combat. Her unique healing ability, which resides in her blood, is notable, and she repeatedly saves Bell from dire situations during his battle with the Juggernaut.