This isekai series is centred on Dennosuke Uchimura, a salaryman who works hard but is consistently overlooked by his employers. Then, as is often the case in such series, he dies in an accident and finds himself in another world... the Demon Lord has summoned him and wants him to become one of the Big Four; his most senior generals! Uchimura doesn't see what he could bring to such a role but it soon becomes apparent that his job knowledge and negotiating skills are just what is needed. Doing his job he works alongside the other generals, most notably the fiery Ulmandra.
I rather enjoyed this series. It may not be anything particularly new and I'm sure I'll forget about it soon after starting the next season's offerings but while watching I thought it was fun. The characters are fun; inevitably for the genre those working with Uchimura are female. As one might expect there is some fan service but it is fairly mild. The animation and character designs are both pretty good. The story played out well and left me wondering if there might be more one day. Overall a good enough show which I'd recommend to fans of the genre.
These comments are based on watching the series in Japanese with English subtitles.