She is a small child with brown hair tied up in a ponytail. She wears a small pink shirt with purple pants.
She and the other children have a very close relationship with Aunt, whom they call "Mama".
Post-Enies Lobby Arc
After Michael and Hoichael stopped Auntie from attacking Zoro, Yoko and the rest of the orphans came out from hiding and introduced themselves to their new big brother. They then led Zoro back to their home where he helped them out in doing chores. Later, while they were shopping, Auntie and her family were kidnapped by the loansharks. They were all brought the the roof of a bulding where they were confronted by Mikazuki. Yoko and the rest of the family were, however, saved when Hoichael brought Zoro to rescue them. They then went back to Auntie's home, where they bid their farewells to their eldest brother. However, as Zoro had forgotten to take back his shirt that had been washed when one of the babies peed on him, Yoko and the family were forced to chase him through the streets. Zoro, who though they didn't want him to leave, simply kept running and so they kept chasing.