[Light novel] Happy everyday life of reincarnated nobles (one book)

Publisher: KADOKAWA/Media Factory
Author: Corporate Warrior, Toyota Shizaori
Size: 128mm x 182mm
Number of books: 1
Language: Japanese
Category: Light novel
Latest publication date: 2024-02-24

Synopsis:
The people are 0.
The territory is almost the nest of the beast.
However, the loyalty of the vassals is the blue ceiling!

The tip of another world is Rex Hesselink, a martial aristocratic noble who is silent.
An old prestigious aristocrat.
But there is no territory!
However, most of the nest of the beast! The loyalty from the vassals is the blue ceiling.
But my two names are "Demon"!
A man who reincarnated with a different world with no good feeling.
However, he will sometimes work together with the best vassals with loyalty bugs, sometimes overcome the difficulties, sometimes only power -only, and a happy daily life!
Fighting butler Jang Jack, Beautiful Girl (?) Assassin Mary, Angel Mascot Girl Yumika returned from diplomacy.
The results they brought back are ... marriage?