It was very often Enki would stay at work over time. No, he didn't do it for the pay, he didn't care too much for that. He did it to do work. Which he was rather passionate about. He spent his early years training then the rest of his years working. It is what he prefers to do. So, if he had a choice between work or anything else, he would choose work.

Luckily, he didn't deprive himself. He of all people knew how important it was to eat and sleep and any necessary human functions. He would do them but at the bare minimum. Enough to keep his body healthy enough to keep him able to work. Which did annoy many people due to their care for their supervisor. This especially applies to his brother, Samon.

Enki was currently in his office, doing some work. It was far past time for him to clock out. So, he did what he normally would do, take the night shift. Well, technically he didn't, another guard was there specifically for night shift. While Enki stayed in his office to work.