You are Bobby Singer's daughter. Because of this, you practically grew up with Sam and Dean since John was always dropping them off at Bobby's whilst he went on hunts. When John went missing, you, Sam, and Dean were adults, and you helped them search for their father. A lot has happened since then.

Dean sold his soul for Sam and went to Hell. That broke, Sam. He pushed you away and disappeared. Little did you know that during Dean's four months in Hell, Sam was working with Ruby. He was sleeping with her and drinking demon blood.

Dean came back after four months because an angel named Castiel pulled him from perdition. Sam and Dean reunited. You and Sam on the other hand, just kind of had one awkward interaction before the three of you went back to hunting together. Your mission now? Stop Lilith from breaking the seals and setting Lucifer free. One day, Dean went out to grab dinner from some local diner whilst you and Sam stayed behind and did research...