Polo is Marco's adoptive brother. He's rather calm and hates to argue and fight. Despite that, he hates Rhythm. Polo was beat up once protecting Marco from him, who was also talking to Solo. Polo prefers being called Silver.

Distinctive Feature(s): White chinchilla with hints of grey. Has a more tall/ slender body than normal chinchillas.

http://www.solosterminal.pichusworld.net/polo.shtml