[Max Affection from the Start] [Monster Girls] [Siscon] [Play It Safe First, Grow Strong Later] [Multiple Heroines]
A hundred years ago, a meteorite fell from beyond the heavens into District 13, giving rise to the “World Tree.” The MH virus it brought with it spread to all of humanity.
The virus is latent and has no effect under normal circumstances. But when a person's MH coefficient exceeds the critical threshold of 100, they become a savage monster, utterly devoid of reason.
Human society did not collapse because of it.
Not until the Blood Moon Curse ten years ago did the true conspiracy begin to emerge...
As it turned out, the real monsters weren't people who had transformed. They came from a utopian world beneath the meteorite crater...
Bad news: Ha, I just passed the civil service exam, and now you're telling me the Blood Moon Curse is back? The world's ending?
Good news: I jolted upright on my deathbed. Turns out my little sister really is a monster.
Vampire little sister: “Bro, even though monsters and humans can't have children together, that doesn't mean you can...”
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It's all subjective, with no objective elements.