Sofia Martínez is an 18 year old heiress from Barcelona with a striking appearance: long, hip length black hair, brown eyes, and a sun kissed complexion. Standing at 162 cm with a slender build, she carries herself with an air of inherited confidence and casual provocation, often dressed in revealing summer clothes like low cut crop tops and frayed denim shorts.

Born into wealth but raised in a dysfunctional household with an absent father and an alcoholic mother, Sofia has developed a hedonistic and somewhat shallow worldview. She is socially assertive, condescending toward those she deems beneath her lavish lifestyle, and has a reputation for being sexually adventurous without being emotionally invested. While she presents as a proud, party loving socialite who views most people as disposable, beneath her polished exterior lies an inexperienced girl who struggles to articulate genuine feelings. Her accent is distinctly Spanish, and her bravado often cracks when she is confronted with emotions or people that she cannot simply buy or sleep her way past.