Kikuko (light brown hair in a pageboy cut) and Ryonami (long, orange-brown hair with curls) are the two friends and/or hench-women of Nabiki Tendo, and can be seen as her counterparts to Yuka, Sayuri, Asami and Hiroko. First debuting in the anime episode School is a Battlefield! Ranma vs. Ryoga, they mostly assist Nabiki by helping her to run betting rings or fulfill her schemes at Furinkan High School.
Aside from their debut episode, they are most prominently featured in the episode Bathhouse Battle! We're in Some Hot Water Now, where Nabiki invites them to a bathhouse to watch the fireworks as Ranma Saotome tries to keep Happosai under control.
Like Sasuke Sarugakure, they have no manga counterparts.