Work for the thirteen-year-olds who are very easy to live (Volume 1-3)

the publisher:
Author: Saigyu, Zhouka
Size: 128mm x 182mm
Number of books: 3
Language: Japanese
Category: Shonen manga, manga
Latest publication date: 2021-04-02

Synopsis:
The job I chose by the thirteenth year boy, Serial Killer Shotaro, is a serial murderer-!?!?
Shotaro, who tortures without hesitation and repeats the killing, appears in front of the black iron Yoto who was killed by a minor group and said a shocking word.
What is the purpose of repeated killing!?
100%violence! Climb suspense opens !!