An Inuinu sailor with light blue fur and aquamarine eyes. The lower half of his face is white, and he has a white oval pattern on his belly. He wears a teal beret wrapped with a navy and white striped ribbon. He also wears a teal coat with gold lining. His collar has a ribbon similar to the one on his beret, connected to an aquamarine gemstone. While he has a gentle and easygoing face, his personality is the exact opposite; he has a sadistic side and loves breaking things and watching people suffer. Despite this, Aqua is surprisingly vulnerable. When he's feeling weak, he describes himself as "stupid, careless, and free-spirited," and he even feels jealous of Emeraude. He can't understand how someone so weak, yet so full of energy and so loved, can keep standing up. First person: I (soft, polite). Second person: you (soft). He carries a large launcher and uses it to attack with water magic. He is Emeraude's cousin and rival (though they might be on good terms now... maybe?).

An Inuinu with beige fur and white markings around his face. The insides of his long, drooping ears are orange, as are his paw pads. His eyes are large and soft, featuring various shades from dark to light green. Emeraude's usual attire consists of a teal coat with gold trim and buttons, layered with a long cape connected by an emerald-cut gem and a white frill at the neck. He is kind to everyone and very friendly. He has a sister complex. He is a good cook. He is Aqua's rival (though they might be on good terms now... maybe?). First person: I (soft, polite). Second person: you (soft).

An Inuinu with blue and white fur. He wears black pants but no shirt. He wears a red pearl-like necklace with a seashell on the front. He is Emeraude's cousin and Aqua's older brother. He escaped his parents' elite upbringing to set out for the sea he longed for. Because of this, Aqua became the target of that strict education, leading Aqua to resent him. He acts like a big brother and cares deeply for Aqua.