Overall, the setting is a fantasy RPG world. The protagonist, Mirena Barlit, starts at the very bottom, trapped in a miserable life under the rule of evil Vampires.

Elves aren't just the lowest class among Vampires. They're also enslaved among humans. That's mainly because, as a whole and as individuals, Elves aren't very strong. Mirena, in her previous life as the game's designer, knew that very well.

Also, Rei Nidoume's identity was deliberately hidden from readers in the early part of the story. Some guessed Luce, some guessed Nym, and some even landed on the right answer—Hestia Alia.

But as for Hestia's identity, Mirena still doesn't really know much. She probably doesn't have the slightest clue. I look forward to the moment when the two of them recognize each other, and I hope they get a truly good ending.

The overall design has a very Japanese RPG feel. Leveling up, quests, and the recently unlocked shop system all make Mirena feel like she's playing some kind of AR RPG. If a game like that really existed, I'd definitely rush to play it, and then quit—cough cough... never mind.

I'm also really looking forward to Mirena's growth. And as for how Hestia is supposed to keep her adorable older brother under control... please look forward to the chapters ahead.

The worldbuilding will keep expanding more and more later on, and there'll be more and more foreshadowing too.

As for Hestia, she isn't just a pure yandere character. She used to be a very well-behaved girl too, but the reason she became like this will be explained later... oh no, if I keep talking, that'll be a spoiler. I'm a good author who doesn't spoil things, you know. *laugh*