In a small remote village in country R, there is a mysterious family.

The family has lived in this village at the foot of the mountain for generations, and both men and women have been born with a great and mysterious mission – to protect them.

But as for what exactly is guarded, even the oldest head of this family can't say a thing or two. The children of those families only knew that they had to go through such a rigorous and brutal training before they could truly carry that great mission. Poor boys and girls, trained from an early age to be the deadliest and most silent murderer, and used their lives to learn how to completely hide themselves in the dark.

When the whole of oneself, the breath, the spirit, the body, and even the faint energy emanating from one's own body, are in harmony with the darkness, then it can be truly imperceptible. Such a perfect means of concealment, only this family can do it.

This family can be said to be the family of ninjas.

However, they never called themselves ninjas, but - Shadow Guard.

The head of the family, Shang Kong Kenji, likes to quote a sentence from country Z to admonish the people of the family: The heavens will descend on the people, and they must first suffer their minds, strain their muscles and bones, and starve their bodies and skin.

The nine-year-old girl Sakurako doesn't know where country Z is, and she doesn't know what the great mission that day is.

Until one day, this ancient and mysterious village was attacked violently, and the village suffered heavy losses, casualties, and was almost destroyed. And the organization that attacked this village came from a team led by people from country Z.

The members of the team had very different faces, some were blonde and blue-eyed, some had black faces, and some looked the same as their own group, and the only thing they had in common was an Ouroboros tattoo in the shape of an '8' on various parts of their bodies.

and, the strong murderous aura felt from them.

If you want to hide in the darkness, you must first become the darkness. There is no murderous spirit in the dark, and you are not allowed to have it.

In the village of the Shangkong family, everyone knows this sentence, and they hide the secret of lurking secrets, so they are full of sensitivity to murderous aura. Sakurako had no ability to fight, and she hid in the darkness in fear and panic, watching her people get caught and killed in a panic and flee, or die fighting to protect others.

Shangkong Sakurako clearly smelled the murderous aura on those people, it was a bloody smell, like rust sticking to the inside of the nasal cavity, with a slight rotten smell, which made Shangkong Sakurako not only afraid, but also a trace of nausea. However, the first thing she exposed was her own tears, tears poured down, this is one of the last mistakes that a 'shadow guard' should make, if you want to hide in the dark, you must first get rid of all your emotions, good or bad.

Sakurako is hiding in the shrine of the village alone, and the sunlight outside the window is shining in, but there is no brightness. She trembled and wiped the tears from her face, the shadows of her relatives, friends, and teachers struggling and rolling were reflected outside the door, and the scarlet blood pounced on the door again and again, and Sakurako had to adjust her breathing and try to find a way to hide herself into the darkness.

Finally, the sound of the fight outside the door gradually faded away, and Sakura seemed to hear those murderous people gathered together, and they groaned reverently.

"Long live the truth."

Truth? Is it here to slaughter the innocent villagers?

Sakurako was terrified, and she was also extremely angry, eager to devour these lives alive, but she didn't know what they were capable of, and they actually killed their well-trained brothers and sisters, teachers and elders one by one, they must have terrible strength.

So, Shangkong Sakurako was aggrieved, sad to hide his emotions, in the face of these people, he only had this way to go.

Shangkong Sakura, who was only ten years old, remembered a proverb from country Z that the former head of the family liked to say: "It is not too late for a gentleman to take revenge." ”

Sakurako doesn't know what a gentleman is, but her nails embedded in the flesh and bitten lips tell her: Ten years is not too late for the shadow guard to take revenge.

The murderous demons got closer and closer to the shrine, and finally, they pushed open the door of the shrine. Blood splashed on the door dripped to the ground with a 'click, click' sound.

Sakurako's tears also fell behind the idol. No one was paying attention, and she had melted into the darkness completely.

It is a strange idol, not as majestic as the gods enshrined in other shrines, and it is more like a ghost turned into stone than a god statue. Because this stone statue is so lifelike!

When she was a child, Sakurako was also amazed by this stone statue, which was a figure of a man with a large head and a short height, this man with extremely strange proportions was wearing a black haori kimono and carrying a slender katana cross-body around his waist. The man was handsome, but he was bald, and he looked a little funny. But after looking at it for a long time, you can feel its mighty general's momentum, which makes no one dare to look at it for too long.

Everyone stood respectfully on both sides of the door, waiting for the Z man to come in, and it could be seen from here that this organization had a class. The Z man looked like he was in his fifties, with a greasy face, but he exuded a serious atmosphere, and when he entered the door, he saw the statue of the god, and the whole person did not move, just like that, he looked at the statue for a long time.

After a while, the man from country Z whispered, "Go." ”

Everyone left quickly, and within a minute, Sakura couldn't even feel anyone's breath. She fell out of the darkness, panting and holding on to the ground, tears and sweat dripping on the ground, and suddenly, Sakurako's eyes turned black, and then she fell to the ground.

I don't know how long later, the door of the shrine was opened again. This time, it was four other people who came in.

Three men and one woman, all looking young. A man with a young face is handsome, while the other two men are twins, one with glasses, one with closed eyes, and in addition to that, there is a girl in casual clothes.

"This should be it." The man with glasses put away the pistol in his hand and looked around vigilantly, "We seem to have been preempted." ”

The woman closed her eyes, quietly feeling her surroundings, then opened them again and shook her head at the bespectacled man.

"Liyou, what do you think?" The bespectacled man asked, and all three looked at the man with his eyes closed. The man with his eyes closed, named Reyu, looked like he was blind and was supposed to be the younger brother of the man with glasses. His face was calm, he took a deep breath, and then showed a faint smile, "Take that girl away." ”

Then, he slowly took two steps forward and stood quietly in front of the idol.

"The 'Soul Sucking Bottle' project can begin."