I want to stop killing a killer (1-4 volumes latest publication)

the publisher:
Author: Soukai
Size: 128mm x 182mm
Number of books: 4
Language: Japanese
Category: Youth manga, manga
Latest release date: 2023-03-08

Synopsis:
Rose became an assassin to live as an immigrant.
My lover Kouka is a local school girl, but she gives up her romance with Rose that her father cannot accept it.
But his father was the priest of the church that Rose attends and the opponent who has filed the crime of killing.
The "organization", the employer of Rose, also begins to move, and the person correlation map of his land is tremendously annoying!?!?!