Karina lives with her mother and one of her sisters. Her mother, Nelly, takes care of their house when she is not out working as a house keeper for another family. Karina is the youngest of six girls and one boy. During 2007 Karina attended fifth grade but did not do well enough to be promoted to the sixth grade. Despite this setback, Karina demonstrates ability in the arts, religion, science, ethics, and physical education. In other subjects, such as math and English, she has more trouble. In her spare time, Karina likes to stay outdoors playing with friends.

Her favorite sport is basketball and she likes listening to music such as reggaeton (Latin hip-hop), electronic, and vallenato (traditional Colombian music). As an adult she hopes to become a police officer in order to protect her community. Karina notes how her experience at Maren House has enabled her to become more respectful toward others and have better communication with her friends. She also says how much she enjoys all the fun activities that take place at the House.