TV-Series
Description
Sonia, a Pokémon researcher from Wedgehurst in the Galar region, begins as assistant to her renowned grandmother, Professor Magnolia. She possesses fair skin, ginger hair styled in a large ponytail secured by four white heart-shaped decorations, and turquoise eyes. Her attire blends practicality with style: a tan trench coat featuring four buttons, a teal crop top blouse, light blue skinny jeans, and black-and-turquoise high-heeled boots decorated with white hearts. Accessories include orange sunglasses, a black purse with a white heart, a watch on her right hand, and notably long turquoise acrylic nails. Upon succeeding her grandmother as professor, she adopts a white lab coat worn open, revealing her midriff.

Personality-wise, Sonia displays a strong fondness for cute Pokémon, often expressing affection by gently tugging their ears, sometimes to their annoyance. She is amiable and dedicated to her research, yet stubbornly refuses to acknowledge her poor driving skills. While finding her grandmother strict, she diligently follows Professor Magnolia's teachings to prepare for her future role. Her persistence drives meticulous investigations into regional phenomena.

Her background includes a close childhood friendship with Galar Champion Leon, whom she introduced to Pokémon knowledge and battling. Their relationship drifted after Leon became Champion. Choosing to stay with her grandmother, Sonia trained to become a Pokémon Professor, focusing on Galar's historical lore.

During Galar events, Sonia researches the Darkest Day, a historical catastrophe involving Dynamax Pokémon. She provides Ash and Goh context about the golden statue commemorating the hero who stopped it. Tasked by Professor Magnolia to study the phenomenon, she collaborates with Goh to investigate Wishing Stars, Turffield's geoglyph, and the Stow-on-Side mural. Her fieldwork involves evading Chairman Rose's agents and uncovering the legend of the legendary Pokémon Zacian and Zamazenta.

Key contributions include identifying Zacian and Zamazenta from statues revealed after the mural's destruction and later recovering the Rusted Sword and Rusted Shield with Goh in the Slumbering Weald. During the Darkest Day's resurgence, she infiltrates Hammerlocke Stadium to confront the energy source, directing Goh to aid Ash while facing Rose's guards alone until Raihan intervenes. She witnesses the climactic battle against Eternatus alongside Leon, expressing awe at the legendary Pokémon's power and the artifacts' significance.

Following the crisis, Sonia achieves her goal, becoming a full Pokémon Professor and succeeding Professor Magnolia. She receives her grandmother's lab coat, pledging to keep it pristine as a symbol of her commitment. While assisting in the search for Chairman Rose, her primary focus shifts to advancing her research independently.

Her team includes a Yamper, frequently accompanying her during investigations. She also utilizes a Rotom Phone for fieldwork documentation and communication.