Katchu Pi 1 and 2

The story takes place in a future where the wildest conspiracy theories have become part of everyday life. Katchu Pi is a teenager born on April 20, 2036, who lives in a society with a seemingly democratic legal system. She and her 3 friends find themselves parachuted into the secret societies of Section Number 2 of the Grande Union (formerly known as France). Katchu Pi, who initially thinks she's living in an ideal society, tells you how and at what cost she lost all her naiveté. She learns that in this world, truth for people of her social standing can only be obtained through sweat and blood. The book is volume 1 of the series.

After being programmed by the group of Freemasons, Katchu Pi wakes up with her friends. Their memories have been erased and they return to life as if nothing had happened. Katchu Pi's mastery of the Schreigeistes will cause some of his memories to reappear. As he learns the secrets revealed by the Schreigeistes, his view of the world begins to change. The world in his eyes begins to look very bland, and his soul shifts towards a constant desire for revenge.