You can find Berry in Beijing, next to Berrys Box in front of the Forbidden Museum in the middle of the map. She will of course need your help. At a certain time she will allow you to open Berrys Box right beside her.
Berry is one of the Chewppies, a group of girl-friends living in a flower field within a candy-forest. They all love to sing and dance everyday in their flower field. Berry's best friends are called Soda, Mint, Gray and Lemon. Berry's Star sign is Cancer, she is the eldest sister of the Chewppies and holds the group together with kindness.
The Chewppies were devised by Sanrio designers in 2001.