Details: Aired in 2018. Thirteen episodes with each a little under twenty-five minutes long. Here’s a site that provides information on the show: https://myanimelist.net/anime/35073/Overlord_II
Overlord II continues the story of Overlord, season one. It wasn’t a great season and you should feel free to skip it.
Overlord II is of the “isekai” genre, or a story where the protagonist is transported to another world, usually a fantasy world. What separated Overlord from other isekai anime’s was that instead of being a hero, the protagonist was turned into a powerful villain in the fantasy world. The story is mostly about his evil deeds.
Overlord sort of tries to be serious and dramatic, but mostly fails at it. It’s kind of an odd anime with a strange tone to the story. It’s dramatic without invoking any real emotion and it sometimes tries to be funny. This season was pretty boring. Another detractor is the animation. It’s not great.
Overall, this was a forgettable season. It’s a shame as I was looking forward to what they would do in this second season.