If you didn't understand: Growing up as an orphan herself in one of the "orphanages", she met a child named Leslie who became her closest friend. She learned a song from him that instantly became her favorite song. Leslie was later shipped out and killed, and the grief caused by the absence of her closest friend made Isabella attempt to escape from Grace Field by crossing the huge wall. When she saw that there was a huge cliff on the other side, however, the sight crushed all her hopes and she was soon stopped by the Mama of her own orphanage. When Isabella turned twelve and was to be shipped-out, she was given two choices: to be killed by the demons, or train to become a Mama. Isabella chose the latter, since she wanted to live longer than anybody else in order to honor Leslie's memory and become a Mama so she could give all the children as much love as she could. When Isabella was around 19 years old and still in training, she became pregnant through artificial insemination and she would always sing the same song for her unborn child that Leslie, years earlier, played for her. Sometime later, the newborn was taken away from her and she was appointed as the new mama of Plantation 3, becoming the youngest ever chosen to become a Mama. After a few years being the mama of Grace Field House, she heard Ray and Madara singing the same song that Leslie once played for her. She then came to the shocking truth that Ray and Madara are in fact her biological son, a revelation that left Isabella in utter horror.