This is not that kind of one-sided sister or brother complex, these siblings are mutually attracted to each other. They even go to extreme and call it love. This collection powerfully strips bare the depths of the human heart, some of which are shocking to the level unacceptable by society, making us shiver. Note: This collection contains manga with suggestive theme

When one’s mind is a cross of hatred and loneliness, they mask their true face, even to themselves.

In our modern times, crimes have become prevalent to the point that everybody must be careful when they go out, even when they are at home. The more gruesome the crime is, the heavier criminal's punishment will be. And if there's a witness, then they have no choice but to add them to their list of victims.