Jinshi no Bannin

After the appearance of monsters called Magatsukami, which cause disasters both large and small, people's lives are threatened daily. High school student Shū Kuramochi, who experienced a disaster with his younger sister in his childhood, aims to become an office worker at the "Magatsukami Guardian Organization AMATERAS," which exterminates the Magatsukami, in order to support his sister, but...