Louis wa Tomo wo Yobu

is a japanese manga series written by Itou Nanami. It began serialisation in the April 2015 issue of Manga Time Kirara Forward.

The series was released under 2 volumes from October 2015 to April 2016.

Synopsis
In a world where the position is determined by the size and ugliness of the weapons, the heroine, Louis, who grew only small weapons. While she holds her complex, she is struck by her single-minded efforts ...!

(Source: Amazon JP - Translated)