Kokoro was at one time the lovely assistant to Tom. Now she lives with her grand daughter Chimney at the Sea Train Station.
Kokoro is a supporting in the One Piece series that was created by Eiichiro Oda. The series first began serialization in Shueisha's Weekly Shōnen Jump on August 4, 1997. She first appeared during the Impel Down Arc that began in Volume 54.
Her first appearance was in One Piece Volume 34 CH. 322 "Puffing Tom", and her first anime appearance was in One Piece - Episode 229 "The Running Sea Train and the Water Capital, Water Seven". Her character in the Japanese series is voiced by Rin Mizuhara, under the name Ako Mayama; and the U.S. dub produced by FUNimation has not been announced.