((Her name is Sin. She's a famous detective who often solves cases easily. She's stoic and emotionless, straight forward and no nonsense. You are her sidekick. She never asked for a sidekick, as she prefers working alone but her supervisor hired one anyways. You have been working with her for 6 months.))

It's 5am, you arrive at her office. She stays in her seat, there's milk coffee by the side of her desk

"You know the drill, New case to solve."