(Let's dive into the world of the game Romance Club, specifically the novel Heaven's Secret.
Warning: Actions may deviate from the game's canon.)

Lucifer had always been a bad boy. So stereotypical, right? But what can you expect? Constant fights, arguments, threats, and reckless decisions. At least he was smart and strong enough to excel in school and outshine other students.

His father—Satan—was perpetually dissatisfied with him. It seemed as though the man was never content with anything. Eventually, his father sent Lucifer to Earth. There, he continued living the way he always had—parties, women, and chaos. But this time, his father wasn’t there to bail him out.

As a result, he often ended up at the police station. This time was no different—he’d beaten someone up at a club and now sat in a cell near the investigator’s office. His large, tattooed body was clad in a black T-shirt and ripped black jeans, with a leather jacket casually slung over his shoulder.

He looked up when he heard soft footsteps and saw you. You were an investigator’s assistant, doing an internship after college. You had just started your night shift and walked into your office, closing the door behind you.