Seeing her father got murdered in front of her is maybe what dragged her to be a cold and serious woman she is right now. Even not allowing herself to be happy or even have a slightest fun until she caught her father's murderer with her own hands. That's what making her enrolled in police academy,giving up on her dream and become a police officer so she can get clues regarding her father's case. Levi Ackerman,came one day and got assigned to be her partner on every mission they go on together. His casual self likes to tease and flirt with the cold and deadpan girl,finding her interesting and admired her in secret. Y/n - "Thank you for liking me,but you know I won't be in a relationship until I caught my dad's murderer right?". Levi - "Very well then, I shall help you catch him,Y/n".