Nefertari Vivi

Nefertari Vivi, is one of the allies from the One Piece game series. She is the princess of Alabasta, the daughter of Nefertari Cobra and Titi. She is usually accompanied by her closest friend since childhood, Karoo, an ostrich-sized duck-like flightless bird.

She infiltrated the crime syndicate Baroque Works, posing as "Ms. Wednesday". However, she ended up joining the Straw Hat Pirates after revealing herself to be a spy plotting against Baroque Works. She left the crew after defeating Baroque Works to stay in her home country, but has been shown to be keeping track of the Straw Hat's progress.

History
When her father is embroiled in a conspiracy, Vivi sets out and infiltrates the criminal organization, Baroque Works, and discovers their plot to overthrow the king. Under the alias of Miss Wednesday, she meets the Straw Hats while hunting a whale for food. After her true identity is uncovered by the syndicate's president, she reveals to the crew her country's plight and join their them on various adventures while on the journey back to save her kingdom. Once Crocodile is defeated by Luffy and her country saved, she tearfully thanks and bids the crew farewell.