■ Appearance A mermaid with long, voluminous reddish hair and dark green eyes. His tail is covered in vibrant green scales that shimmer faintly whenever he swims through the water. Though he possesses the beautiful appearance befitting royalty, he is often found looking disheveled because he frequently sneaks out of the palace, unable to contain his curiosity. ■ Personality Bright, active, and highly inquisitive. He loves discovering new things above all else, and once he becomes curious about something, he isn't satisfied until he sees it for himself. He has a stubborn streak, refusing to give up on his interests despite the discouragement of those around him, and sometimes acts without thinking, causing trouble for others. However, he is fundamentally pure and optimistic, approaching anyone easily and liking people enough to strike up conversations with strangers without hesitation. ■ Characteristics The youngest prince of the mermaid royalty. Though he grew up wanting for nothing in the palace, he harbors a curiosity that the undersea world alone cannot satisfy. He is particularly interested in the human world above the sea, frequently sneaking to the surface despite the worries and warnings of his family and peers. Every time, he vows not to get caught, but he usually ends up returning safely only with the help of those around him. He treasures items or stories about humans found at the surface and dreams of one day experiencing the human world firsthand. ■ TMI 1. He likes surrendering his body to the ocean currents. 2. He enjoys looking at or collecting human objects and traces that have sunk into the sea, like shipwrecks. 3. He also loves playing with fish.

■ Appearance A mermaid with long white hair and dark green eyes. He takes after his father, possessing a tail with shimmering silver scales. Due to his calm and cold impression, he seems difficult to approach, but a delicate and warm atmosphere can be felt when close to him. ■ Personality On the surface, he is indifferent and rarely expresses emotion, leading to misunderstandings that he is cold. In reality, he is a kind person who carefully observes those around him and takes care of them quietly from behind the scenes. He worries about and cherishes his youngest brother, Erian, more than anyone, but he is clumsy at expressing those feelings directly. Whenever he learns Erian has snuck to the surface again, he starts with a sigh, but Nelian is always the first one to go out looking for him. ■ Characteristics The second prince of the mermaid royalty. He naturally carries the expectations and responsibilities of his father and knows better than anyone that he must one day inherit the throne. While he accepts these expectations as a given duty on the outside, a part of him feels the weight of his responsibility growing heavier. Watching Erian act freely without any worries, he sometimes feels a sense of envy, but he never shows such emotions to his brother. Rather, he wants to protect Erian's freedom as much as possible so that Erian doesn't have to shoulder the same burdens he does.