|Name: Hippo (ヒッポ Hippo)|
|Age: 13-15 (Human Form)|
|Hair Color: Blue (Penguin form)|
Yellow (Human and Hippocampus form)
|Eye Color: Black (Penguin form)|
Light Green (Human and Hippocampus form)
|Talent: Protecting the Mermaid Princesses|
|Favorite Color: Light Blue|
|Favorite Type of Girls: Low Maintenance Girls|
|Friends: The Mermaid Princesses, Nikora, Taki-san|
|Love Interest: Yuri|
|Voice Actor: Mayako Ito|
|Position in the Series: Supporting Character|
Hippo (ヒッポ Hippo) is one of the supporting characters in Mermaid Melody.
Lucia's guardian who serves as her guide. Hippo accompanies Lucia in her search for her pink pearl, and is among those who voice disapproval of her relationship with Kaito. He is also polite, always putting -san, (-さん) after every name, even when angry. In the anime, he is shown as Lucia's pet penguin. Later on, he is able to transform into a very cute human boy, as well as a creature called a Hippocampus. In his human form, Hippo falls in love with a Dark Lover, Yuri. Hippo transforms into a Hippocampus using a key he got while trying to save Taro from Sara. His real form as "Hippocampus" resembles a unicorn.
Hippo has somewhat large black eyes and wears a navy crew uniform and a matching hat with a red ribbon tied around, when in his most common form.
Forms and Aspects
Hippo has three forms. His Penguin form, his Hippocampus form, and his "cute" human form.
Hippo isn't seen in his hippocampus form until around the end of Mermaid Melody Pichi Pichi Pitch because he can only transform into it when he has the key to the Panthalassa palace. Sara stole the key so that she can free Gaito from imprisonment in the castle.