By Fire head and KeG. Released in Japan as “Kaketa Tsuki no Mercedes: Kyūketsuki no Kizoku ni Tensei Shita kedo Suteraresō nanode Dungeon wo Seiha suru” by TO Books. Released in North America by J-Novel Club. Translated by Maddy Willette.

Let’s face it. At its heart, this is a story about a girl who starts off ludicrously OP and just gets even more so. She’s of the stoic variety, but otherwise she fits the stereotype perfectly. She defeats monsters who “swear eternal loyalty” to her, though of course the word slave is not used. If you dislike this sort of book, then this is absolutely not a book that is going to change your mind. I kinda liked it, though. It has a gimmick that took me a while to figure out, which I’ll get to below. It has a few people other than our somewhat sociopathic heroine who have actual heart and soul, though honestly this is not a world for nice people to be nice in. And honestly, I just kinda got on with Mercedes. It’s the sort of power fantasy I don’t mind reading.

Our heroine is Mercedes, a young vampire who has (yes, I’m sorry) memories of her past life in Japan. (Yes, she invents chocolate. Sorry.) She’s the daughter of a concubine, and she and her mother live in a run-down decaying mansion, abandoned by her father. So she decides to become an adventurer. She trains hard to make herself strong, though because she never sees anyone other than her mother and maid, she has no idea how strong she is compared to others. And then she heads off to take on a dungeon and do quests. Which… turns out pretty easy, actually. She even tames an ogre and a dangerous wolf to act as her companions. Could she actually be really strong? Nah. But she’ll soon find out, as her older half-brother is holding a party where he plans to beat up the rest of his family to prove he’s best.

At first I wondered if this series was a satire, as Mercedes continually points out the cliches and weird things about her world. It’s medieval in tone, but has some 21st century amenities. It combines a tourist’s idea of Germany with Japanese writing. It is, in fact, exactly like you’d expect an isekai written by a writer who’s just taking a standard RPG setting and doesn’t care much to be. But, as it turns out, there may be more to it than that, as when she conquers the dungeon (which features a slew of cliches, including her confronting her also sociopathic past self) she learns that this world was created in the past, and records of its past then excised. I hope we come back to this. As for the rest of the book, I liked Mercedes’ interaction with Margaret, which is possibly the only point in the book she shows that she’s not simply exactly the same as her father. Just… mostly the same.

That plotline will play out in the second volume, I assume. Provided you don’t mind everything about its genre, this is quite enjoyable.