Rika

Rika is a little girl living in Shell Town who helps Zoro by offering him onigiri (cookies in the English anime) but he refuses and tells her to go away. Helmeppo then walks in and takes them for himself but then spits them out because the rice balls were sweetened with sugar (the cookies have bits of eggshell in the English anime). Helmeppo orders the naval marine standing behind him to throw her out but is caught by Monkey D. Luffy.

The reason Zoro was captured by the Marines was because he defended Rika and the villagers from Helmeppo and his wild dog.

Rika becomes friends with both Helmeppo and Koby during their stay in Shell Town, and becomes upset when the two leave with Vice-Admiral Garp.