Elijah was born into the Rossum family in 1994. The family that has had a feud with the Fischer family since 1989.
Elijah is a toddler and starts to begin to see that he is very different from his family. He has very different interests than his older brother and father and prefers to stay inside and draw pictures on his activity table.
He met his best friend Elijah in third grade, not knowing he was a part of the Rossum family, they became best friends and hanged out all the time. They always were there for each other even when they were being bullied or were constantly stressed.
However, in seventh grade when Elijah wanted Isaac to meet his parents, they learned he was a Fischer. They got extremely angry at Elijah and forbid him from ever hanging out with Isaac again. So the only contact they ever had was in school afterwards.
In September 2009, the events of Elijah and Isaac take place. Isaac thinks the family feud is stupid and needs to end, so he can hang out with Elijah again outside of school.