Jeff wears a white sweatshirt, black pants, and black converse. His main weapon in a kitchen knife.
Before being burned, he was quiet and antisocial but not to people who knew him well. But after the incident, he became insane and extremely violent. Despite this, he is trying to learn how to care, thanks to his brother Liu and his friends.
From the cost of his father's promotion, Jeff and his family moved to a new "fancy" neighborhood. As they did, Jeff started to have weird feelings every day. That is until he and his brother Liu got attacked by some skateboard punks. As they did, Jeff defended him and his older brother, by stabbing them and beating them. As their school bus came, the brothers were running to their new school. They dare not to tell anyone what happened. As they got home, the police were there, asking questions about the incident. Lucky, the boys got away with it. The brothers decided to take a walk to shake it off, but they met other bullies, and a fight broke out. Both boys were beaten up, and one of the bullies put gas all over Jeff and Liu. Another bully had a lighter, and threw it at Jeff and Liu. Jeff took the lighter in order to protect Liu, and the cost was getting burned.
When jeff awoke, he found his face getting cast. His family was standing by his side, crying for joy that he lived. As they took off the cast, they were shocked how his face turned out! But Jeff loved his new face. Right where he standing, he started to laugh non-stop. His mom was confused and questioned the doctor, which he told her that it was part of the effect after he gets up. His mom understood, and the family took Jeff home.
Later that night, Jeff mom heard crying in the bathroom. She got up and went to check what it was. When she enter the bathroom, she found Jeff cutting himself in the cheeks, making him look like he is smiling. She also notices his eyelids are burned, so Jeff can stay awake forever. When the Dad checked on his wife, Jeff charged at them, with a knife in his hand, stabbing his mother and father. Next, Jeff quietly walked into his brother's room. As he holds his brother down, Liu tried to talk some sense into him, but it was too late. Jeff whispered in Liu's ear "Go to Sleep", and stabbed him. As the story continue, Jeff renamed himself "Jeff the Killer".
- Jeff's infamous catchphrase is "Go to Sleep"
- He is always aggressive and bloodthirsty.
- He killed Jane the Killer's family
- Many people believe that he's a bisexual since he gets shipped a lot
- He's around 15 years old.
- Kinda likes Lulu
- He's in the comic "I Eat Pasta For Breakfast"
Theme song: Riot - Three days Grace