Shinichi, a former hikikomori and an otaku after applying for a job finds himself in a land which is the dream of every otaku. Coming straight to the point, he is appointed to use his knowledge as an otaku to strengthen bonds between Japan and the new country by promoting otaku culture.
I'd recommend you to back off if you're here for the plot because it has a rather weak one. Anyway, the anime is oriented towards watchers who wanted a bit slice-of-life with a plot just to kill boredom. It clearly has parody in its genre, so there's nothing more to say.
About the characters, they are nothing new, you could find similar generic characters in every other anime. Honestly, Myucel couldn't have been more moe.
Finally, watch it only if you're up for a weak enjoyable plot with a decent amount of fan service.