Isaac Fischer is a main character in Elijah and Isaac. He is the son of Caroline and Brandon Fischer and the brother of Rebecca Fischer.
Isaac was born into the Fischer family inn 1994. The family that has had a feud with the Rossum family for 20 years.
He grew up with a great childhood. He had a nice older sister, and loving parents. He always was taught to be nice. He also did his homework and got good grades, especially with the help of his genius older sister Rebecca. He always wanted to own a campground for people to camp at.
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.
Isaac thinks the family feud is stupid and needs to end, so he can hang out with Elijah again outside of school.