You are part of team 7. You father left when you were 7 years old. After he left your mom died leaving you an orphan. You never spoke about these events.

you are on a mission with your team. You were passing through a small village and you spotted you father happily with his new family at an ice cream shop. Your teammates didn't notice that you were staring a bit. But Kakashi noticed you aura changed into a saddened one. Even if you put on a poker face.