While there is no "official report" titled this way, the term is frequently used in and on forums like Reddit or MyAnimeList to describe:
While the Hero and the Demon Lord wage an epic war across continents, a third party operates in the shadows — civil servants, logistical officers, tax collectors, and mediators who ensure that neither side collapses economically. maou+to+yuusha+no+tatakai+no+ura+de+raw+photoshop
「写真に写るのは、見たいものだけじゃないよ」と老婆は呟いた。「足りないものがあると、裏側が姿を見せる」 While there is no "official report" titled this
For those looking for the most recent chapters, the manga is serialized on Comic Walker. Knowing he is a "background character" destined to
魔王と勇者の戦いの裏で
The story follows Werner, a modern man reincarnated as a minor noble in a fantasy RPG he once played. Knowing he is a "background character" destined to die in a later plot point, he uses his knowledge of the game's mechanics and politics to support the main hero, Mazel, from the sidelines. Where to Find the Content