Wadi, sometimes called Ueda in adaptations, abandoned an affluent urban life at fourteen after her father disowned her. This followed her pregnancy and refusal to identify the father, Dr. Clive, due to fear of retaliation against him. She raised her son Haré alone in an unnamed jungle village, displaying a carefree and frequently lazy demeanor. She often delegated household chores to Haré and engaged in binge drinking. Despite this, Wadi exhibits strong maternal instincts, expressing deep affection for Haré and delight in her second pregnancy with Clive. She stated she would follow Haré anywhere if he vanished. Her survival in the jungle is partly due to exceptional hunting skills, ranked second only to the village elder.

Wadi shows chronic irresponsibility. Her cooking abilities are poor beyond shrimp au gratin, often resulting in self-injury when attempting other dishes. Her relationship with Dr. Clive, Haré's biological father, involves fondness but inconsistent receptiveness to his romantic advances; she initially treated them as jokes until later developments. She remains unaware of affections from other characters like Asio and Uighur. During city visits, she foiled a bank robbery attempt alongside bodyguard Robert, revealing latent competence.

In later story arcs, Wadi became pregnant with Clive's child and eventually married him. This pregnancy heightened Haré's anxieties about caring for another sibling, stemming from his parents' laziness. Revised versions of her deceased father's will revealed her inheritance rights, prompting her wealthy siblings to dispatch multiple assassins to eliminate her. These attempts were repeatedly thwarted by Robert and other allies, including Dama, an assassin who abandoned the mission after Robert's intervention. Wadi resolved to confront her siblings directly in the city. This led to further conflicts, including a plane crash orchestrated by assassins Alex and Shirly, and encounters with new allies like the muscular QP.

Throughout these events, Wadi maintained her characteristic nonchalance while gradually assuming a more proactive role in protecting her family and asserting her rightful inheritance. She ultimately reconciled with her mother Sharon during a city visit. Her development culminated in balancing her jungle life with Clive and periodic returns to the urban environment to address ongoing familial threats.