Jeff was a 13-year-old who moved to a new neighborhood with his brother, Liu, and their parents. On their first day of school, they were accosted by 3 bullies named Randy, Keith, & Troy, whom Jeff brutally beat up after they threatened them with knives. Liu took the blame for it and was arrested, sending Jeff into a deep depression. The bullies later attacked Jeff again at a party, and Jeff killed one of them, but not before getting covered in bleach and lit on fire by Keith. During this fight, Jeff's mind permanently snapped
When Jeff woke up, he was at the hospital and his head was wrapped in bandages. When the bandages were taken off, it was revealed that his face had become disfigured and ghastly pale from the burns, with bright red lips and a leathery texture. Jeff said that he liked his face this way and laughed hysterically, but the doctor foolishly thought that this insanity was merely a side effect of the painkillers and let Jeff go home
Later that night, Jeff's mother found him carving his face into a permanent smile so that he would no longer have to exert energy to smile, as he put it, and burning off his eyelids so he could always see his face. Jeff's mother went to her husband to tell him that their son had gone completely mad and needed to be killed, but Jeff caught them and stabbed them to death. This woke up Liu (who was recently released), with Jeff telling him as he was about to plunge the knife into his body, "Go to sleep
Jeff then went on a serial killing rampage, killing those who refused to sleep at night, and as the story continued, Jeff renamed himself "Jeff the Killer
