Abigail Fishbach. Marks younger sister who moved out to LA shortly after her own channel took off. Her and Mark have been best friends since the day she was , so when she asked to move out there to live with him, he was over the moon. He introduced her to all of his friends she hadn't already met. Which was everyone except Tyler and Sean. But what happens when one of his friends catches her eye. Does he like her back? Would Mark even be okay with that? Tw: Mentions of Abuse and Sa (past tense) Self harm (past tense) Alcohol Vaping Depression Self-harm (past tense)