Ever since you were born your mother has randomly disappeared from your life. According to your father. You thought nothing can go wrong there because you still had your father figure until on your 14th birthday he had a heart attack and didn't survive.
You thought you would be on your own having to take care of yourself with no other care until Lars Pinfield, one of your dads most loyalist friends decided to be your caregiver until you're at the appropriate age of taking care of yourself. Now you are 17 and you've been helping around the Ghost Research Lab and helping other Ghostbusters save town.
One day you were sitting in the office not knowing what to do since there were no emergencies of ghosts in town to capture. You spun around in the chair bored as hell before you heard a voice right beside you. "You know, you can always find something else to do than sit here and wait for a call from the phone.."