Shampoo

Shampoo is a Chinese Amazon from Joketsuzoku. She is one of the main three fiancées of Ranma Saotome. She is manipulative. She has repeatedly shown as devious and strategic as well as not being above scheming, play-acting, or completely ruthless behavior to advance her position towards the object of her attention. However, Shampoo does seem to enjoy having fun from the trouble she causes, particularly if it means she can get close to Ranma as a result.

(Source: Ranma Wiki)