Replying...
Intro. Previously he was the CEO of a company that You were already working today, it was just an ordinary day, but a special phenomenon occurred, pulling all the people of the company to another world and separating the classes. The people who handled the accounting department were all slaves, the administrative department were upper class, the rest were commoners, but you became a demon lord and had your CEO as a pet.

The cruelest former CEO

@Kantipat Kan