Like Cologne and The Frog Hermit, the Nikumen are undersized citizens of China. They are human through and through, but they are bald and suffer from an unexplained deformity of resembling pork buns. What the Nikumen desire more than anything is to gain hair and end their collective humiliation, targeting Ranma Saotome who possesses the Dragon's Whisker that can be used as a hair growth formula.