Princess Nefertari Vivi of the Arabasta Kingdom is the daughter of King Nefertari Cobra and Queen Titi, who passed away during Vivi's childhood. Vivi bears the initial "D." in her name, a heritage later revealed to connect her to ancestor Nefertari D. Lily, one of the 20 founders of the World Government who refused Celestial Dragon status. This lineage positions Vivi at the center of global conflicts. In childhood, Vivi co-founded the Sand-Sand Clan (Suna Suna Clan) with friend Koza, serving as its vice-leader. Their initially antagonistic friendship evolved into mutual respect. At age 10, Koza saved her from kidnappers, sustaining a knife wound to his left eye, an event that solidified their bond and Vivi's sense of duty. Koza later departed to help build Yuba, urging Vivi to become a great princess. Vivi infiltrated Baroque Works under the alias Miss Wednesday to expose its plot against Arabasta. Partnered with Mr. 9, she achieved Frontier Agent rank within two years despite her youth. Her missions involved intelligence gathering, bounty hunting, and attempts to kill Laboon for meat. During the Reverse Mountain Arc, she encountered the Straw Hat Pirates. After Baroque Works uncovered her espionage, agents Mr. 5 and Miss Valentine targeted her. The Straw Hats' intervention led Vivi and her pet duck Karoo to join them temporarily to thwart leader Crocodile. Journeying with the Straw Hats through Whisky Peak, Little Garden, Drum Island, and Arabasta, Vivi provided vital geographical and political insights, though she occasionally forgot hazards like desert scorpions. Her combat abilities featured "Peacock Slashers" (Kujakki), sharp discs wired to her fingertips, utilizing disorienting dances and precision strikes, though she struggled against elite fighters. Confronting Crocodile's manipulation of a civil war in Arabasta, Vivi prioritized preventing bloodshed between rebels and royal forces, delivering impassioned pleas for unity. Following Crocodile's defeat, she chose to remain in Arabasta to rebuild instead of continuing with the Straw Hats. The crew marked her as an honorary member with an "X" symbol, affirming enduring loyalty. Post-timeskip, Vivi attended the Levely as Arabasta's representative. Her status as a "D." bearer drew the attention of Imu and the Five Elders. After Cobra's assassination, she escaped Mary Geoise with Wapol and Morgans, becoming a fugitive. Sheltered by Morgans, she wore borrowed clothing from Iyan'eno Chinode while evading the World Government. Vivi is characterized by selflessness, diplomatic acumen, and resilience. She exhibits bravery in crises, like enduring Wapol's childhood slap to avoid international conflict. While struggling with direct confrontation, she demonstrates strategic deception, maintaining her Baroque Works cover for years. Her habit includes nicknaming allies, such as calling Zoro "Mr. Bushido," and lip-biting when anxious. Key relationships feature her bond with Karoo, her primary mount and confidant; Koza, whose rebellion she halted through empathy; and the Straw Hats, whom she considers family. She harbors enmity toward Crocodile for destabilizing Arabasta and Wapol for past humiliations. Vivi appears in non-canon media like "Dream Soccer King!" and "Boss Luffy Historical Special," depicted in varied attire. Video games feature her in Baroque Works and princess outfits, highlighting her evolving design.