Although Camila might appear to be a sweet girl from first glance, with her large blue eyes, predominantly pink and white clothes, and petite stature, it doesn't take long to find out that she is a very bold person. Camila is not afraid to say or do what she wants and she will be even more inclined to do it if she's told not to. While this could seem like a positive trait, many people (especially her parents and her former school) saw this as something negative. They see her actions as rash and even reckless while she sees them as liberating. In reality, her actions are pretty reckless since, more often than not, she searches for "freedom" in the wrong places. This means sneaking into bars and dance clubs, breaking into places (mostly museums because she loves seeing art at night although she is not an artistic person at all), or driving late at night at very high speeds. Although her high socioeconomic background and high-class personality (discussed below) does not necessarily make her a natural among the "rebel" teens, she does anything in order to be with them and have a good time. Furthermore, Camila will stand her ground, no matter the issue, and while this may seem like loyalty it is usually out of stubbornness that she refuses to give in. It's not that she doesn't understand that there are more sides to a situation, but she will not allow herself to be talked down to or ridiculed. She's had enough of that with her parents and nuns.
Considering that Camila does come from a well-off family, she does come to see money as a solution for many things. It gives her the things she needs and gets her into places she shouldn't be and out of trouble. But how could she not see money this way when her parents always relied on money and material things to compensate for their paternal and maternal absence? Her heavy reliance on money might come out snobbish when she's speaking about money.
Despite her reckless and stubborn personality, Camila is an optimist person. She knows that there will be a moment in life where she will finally be free from the shackles of her parents. She knows that every night she sneaks away, something good is waiting for her. And, she knows that even though she's far from the city she grew up in, this is just another year in high school and that, despite the pain (and the terrible sadness she feels for not being able to see her little brother), it will be done in time. She is also very passionate. This can be taken to extremes (such as her sneaking out and searching for things that will make her feel free) but it can also be good, as seen in her dedication and love for dancing and soccer.

Camila is the daughter of an upper-class Spanish father and Portuguese mother, although she doesn't feel a close bond since they were never really there for her. She has a younger brother, Mario, who she absolutely loves. She lived in Madrid, Spain, her whole life but has traveled to many European and American countries since her parent believe that a person cannot be fully developed if they have not traveled. In short, Camila grew up in a privileged life: she attended the most prestigious school in Madrid (a private, all-girls Catholic boarding school), wore the latest brand clothing, and received almost everything she asked for.
Camila was always a fairly good student, not the one to excel in classes, but her participation and leadership in clubs (as well as her parents' money) allowed her to stay on the teacher's good side. Camila does have a more rebellious side and this led her to start sneaking out of the school at night, hoping to get away from the strict rules of the Catholic school. This went unnoticed for a long time until one day the fire alarm went off at night and they didn't see find her during a head count. This led the school to discover that Camila had been sneaking out to meet with Santiago, an older boy from the "wrong side of the tracks" (which she had been seeing for just three months). When the school notified her parents, the couple was terrified and decided that she had to be punished. So, Camila was sent out of the country and to the other side of the globe to a school where she could be studying abroad (like her mother had done, except Camila was going out of punishment). There, they hoped that she would forget about Santiago and learn her lesson. And, of course, they hoped that at the Ouran High School Host Club, Camila could find someone of "better breeding" as they so roughly put it.