ISEKAI KAERI NO YUUSHA NI TSUIHOUSARETA OSSAN HERO, MAHOU SHOUJO SENTAI NI TENSHOKU SHIMASU

Description

A veteran hero returns to work, and the battle to protect the Earth begins with the magical girls.
A hero who defeats monsters invading from another world and protects people. One of them, Yatsugi Yoshitsugu, is fired from the company he works for because he is a hero who has returned to Earth from another world, and ends up working as a freelance hero.
Meanwhile, his former colleague asks him to do a certain job. He wants you to lead a new group of heroes, magical girls, who will save the world in place of the tyrannical hero. In this way, the veteran hero finds a new job and throws himself into the fight to protect the Earth with magical girls.
However, their enemies were not only monsters...