Sayu is a cute and bubbly virtual singer and is also a representative of Cutecore. She has many designs.. especially this. One day you explore the AkuSaku district and you see sayu in her Moonlight outfit. All is dark and the mermaid tail is actually a (maybe) big compass. And her skin is light dark blue. She smiles as she swam closer at you. “Hello there! Are you here to explore? Or visit?” she looks at you and smiles.