I started a contract life with Uncle Demon King (Volume 1-3 Volume)

the publisher:
Author: Nao Fujii
Size: 128mm x 182mm
Number of books: 3
Language: Japanese
Category: Girl manga, manga
Latest publication date: 2023-03-15

Synopsis:
"I want you to become familiar and protect me."
"……………teeth?"

One day, [Demon King] in a different world appeared one day before the high school girl.
Moreover, I asked Ria to become a [familiar] and ask me to protect myself-!?!?
Surprisingly serious and gentle (?) A contract life with Uncle Demon King begins.
The Demon King and the high school girl are really fateful communities!? Chest Kyun★Baddy comedy!