Called murderer (Volume 1-2 is the latest issue)

Publisher: KADOKAWA/Media Factory
Author: Makoto Miyako, Masayoshi Ido, Lack
Size: 128mm x 182mm
Number of books: 2
Language: Japanese
Category: Youth manga, manga
Latest release date: 2020-04-23

Synopsis:
One of Tono, who has been training various martial arts since childhood, has traveled to a different world. In a peaceful modern Japan, I was not blessed with the opportunity to demonstrate the skills I have trained, and I was dissatisfied with being rotten.
He hears that the different world is rampant and has a struggle between humans, and decides to live there. Here you can fully demonstrate the skills to kill your trained person.
A terrifying man with a martial arts that has trained to the limit of humans and a distorted ethical view that can kill people without pain has been released into a different world.