At Each Other's Throats Again! The Mistress of the Scarlet Devil Mansion and the Mistress of Chireiden!...

(Heartfelt thanks to 'Desire to Fly Without Heart' for the 5,888 reward! And thanks to 'Yunqi Qinggu' for the reward!)

Seeing the two cute little girls, both sprawled atop the same grown man, glaring fiercely at each other with puffed-up anger while their eyes held equally chilling looks, everyone present silently thought that things were bad.

Who were these two little girls?...

One was a young vampire whose mental state had remained unstable for a full 495 years, who had spent the past wandering around crazily looking for people to play with, ruining who knew how many and staining her hands with who knew how much blood.

The other was a youkai whose heart had remained closed off for many years, who had spent the past drifting around like a lonely ghost, unnoticed by anyone, yet capable of killing with an innocent, childlike mindset.

Without exaggeration, in terms of danger alone, Flandre and Koishi Komeiji were absolutely the most dangerous beings in all of Gensokyo!

After all, if one encountered other youkai, one might still try to talk or bargain their way into being spared. But if one encountered these two little girls, good luck might let them escape disaster. Bad luck, though, meant only one word no matter what they said.

Death!

That was why these two little girls, who both looked under ten years old, had earned the title of "demon little sisters." Likewise, their unstable minds and closed hearts had given them powers far beyond those of others.

To say nothing else, both Flandre and Koishi Komeiji possessed greater power than their own older sisters!

Although Flandre's mind had stabilized, and Koishi Komeiji was not truly a youkai who enjoyed killing, when it came down to it, these two little girls had minds no different from ordinary