It suddenly striked me that the princess is Umaru done right.
Edit: Seriously. While it's not like Umaru-mode, when the princess is in pajamas looking for new ways to sleep, she seems completely different to everybody (I think there was a chapter that mentioned this...)
https://en.wikipedia.org/wiki/Leonard_(demon)
"Grand master of orgies". Yep, makes sense that, as a priest, he absolutely would not want his real name out there.