Old-school CLAMP isekai.
Literal isekai.
The yandere otome concept is cool and all I’m a little disappointed the author didn’t do much with that aside from change the ML’s target. What is fun is the fact that there’s a whole collection of people thrown into the game, struggling to make sense of things. It elevates the otherwise pretty cookie cutter setting when it comes to “nobles in a prestigious high school” series to something a little more interesting.
The Maid and the Vampire