Written on the front:

In 2015, "Old fellow, you'd better go first," a gray-haired old man sits on a stone chair with a knife on the table in front of him.

He drew his sword, "Old fellow, you didn't realize your kendo dream after all. Do you think that if you are famous, someone will teach you true swordsmanship because they see your aptitude? Nope".

The old man folded the handkerchief and wiped the blade of the knife, and his tears were reflected on the blade.

Is there really a place for swords to survive in the world today? Guns and cannons can withstand the hard training of an ordinary person's life, so what is the use of the cultivation of swords and swords for ordinary people like them? Where is martial arts?

On a high mountain, the wind is strong. The blow made the man sitting on the cliff have his not-so-long hair flying back. The man was naked, and his left shoulder was bandaged downward. There's still a little bit of blood oozing out.

The glow of the setting sun is so cold, but the eyes of men are even colder. In his left hand he held a knife, and it was all he had. He had no love, and family affection ended a few days ago with the birth of this knife.

"Grandpa, does martial arts really exist in this world?", when he was a child, he asked his grandfather excitedly, "Of course it exists, but you can't enter that world until you have your first sword", grandpa touched his head and looked at the sword sent by his friend after his death, the sword stood alone on the stone platform, swaying in the wind.

Now that he knew that martial arts in this world really existed, because he had met and fought with it, he touched the 20-centimeter-long scar on his left chest, and he smiled, and the wind around him laughed even colder.

In 2016, "I finally succeeded, old fellow, your kendo dream, it didn't work, but my kendo dream will be completed by my grandson, hahaha, he was born for the sword", the old man was still laughing, "but I can't see the sword path created by my grandson."

He looked at the knife and slowly approached it, smiling at the red molten iron burning his skin, until the molten iron covered him. A fire broke out in the center of the iron pool, reflecting the enchanting appearance of the blood and water in the pool.

He returned home and found the letter left by his grandfather. "Child, you always ask me where the martial arts world is, and now grandpa has left a knife in the cave in the back mountain, and that knife can take you into the world of martial arts, grandpa is tired, and he can't trace the knife way, you have to replace grandpa."

He came to the cave and called "Grandpa", and the sound stopped abruptly. Because all his attention was drawn by a knife. The knife is a bit like the obstacle knife in the Tang knife, with a special arc in the straight.

He walked towards the knife like a demon, and entered the iron pool like his grandfather, but fortunately the iron pool was no longer so hot, and even the bottom had cooled out of the iron block.

He got closer and closer to the knife, and finally he tightened his grip on it, and he could clearly feel that it was his, and it could only be his.

He grasped the hilt of the knife with both hands, and the green tendons burst out, and he pulled the knife out. He kept swinging his knife until he was sweating profusely. Suddenly, he caught a glimpse of his grandfather's knife stuck next to the sword.

He remembered that his grandfather had said that when he died, he would stick his knife next to it. He panicked, and kept calling his grandfather's name, and there was only an echo of him in a cave in Nuoda. He saw Grandpa's ring next to the iron pool, and he understood that Grandpa had committed suicide.

He knelt there for a day and a night, and when he got up, his feet were a little numb. Holding the knife that his grandfather had forged for him, he decided to leave.

He kowtowed 26 times to the stone platform, representing his grandfather's 26 years of nurturing kindness. Turning to leave, the sword on the stone platform groaned softly, as if to say goodbye.

He went into the stone house and took up the knife that belonged to his father, which had accompanied him throughout his childhood, and confided in him about anything that had not gone his way, including when he was in love with his father.

"Is that old man immortal living in seclusion here? It's really hard to find, boy, do you know? Hey, it's good to have that knife on your back, give it to me", he stepped back, shook his head, and said coldly, "No". The man was annoyed, "Seeing that you are carrying two knives on your back, I think you are also a martial arts person, do you know who I am?"

The man took out the jade pendant in his arms and shook it at him. He looked at the scene coldly, a clown, and he pulled out his father's knife.

"I don't know what to do", the man flew and drew his sword, swinging it. He didn't retreat, but advanced, and the hundreds of millions of times he drew his sword made him instinctively block the sword.

"I thought it was a fellow practitioner, but I didn't expect it to be an ordinary person", he blocked the man's sword, but he didn't block the man's sword energy. He didn't have the sword to resist. The sword qi slashed hard at his left chest. This sword aura also repelled him.

He stood up with his knife, stabilized his body, and chuckled, "You martial arts, it's nothing more than that."

The man waved his palm in the air, and he, who was already weak, spat out a mouthful of blood into the air and fell to the ground.

The man stepped forward and looked at him like an ant, "Ordinary people are always ordinary people, even if you can block my sword", the ant-like eyes pierced his heart like an arrow.

He didn't have any excesses, like watching a stranger perform, and he wanted to live, and the greater the reaction, the greater the humiliation. The man said "boring" and stepped on his face and walked away, going to find his grandfather.

"By the way, I am the king of the north", the man snatched the knife that belonged to his father from his hand.

He looked at the back of the man leaving, and said in a low voice, "The Northern Wang's Family", his voice was very low, like a demon whispering, telling of his hatred for this world.

He sat on the top of the mountain and watched the sunset, "Sunset, what do you say is wrong with this world, my parents are gone, my love is gone, and now my last relatives are gone, is this the world like this?

He stopped talking to himself, he raised the knife. The knife stained his blood and looked glaring in the light of the setting sun.

"Cover the enemy with a barrier, but I can't use you to defend against the enemy, the barrier knife, the barrier knife, what should I name you, you ended everything in me, so that I only have love and you from now on, you are called 'memory'."

He lifted the bottle, opened his mouth, and drank the wine, allowing it to spill out of his mouth, wetting the wound on his chest without pain.

The knife began to tremble, and a playful voice sounded in his head, "Tsk, look at this poor child, how helpless he is, he needs a guide, oh my God, forgive my poor child, he was born for the knife, how can he have the ridiculous emotions of humans, he is a knife, a knife born for killing!"

"Who are you?"

"Who am I, yo yo, this is really a great question, how many creatures are asking this question, what a ridiculous question, I am you, every creature has two sides, you are my positive side, and I am your opposite side, but I am not like you, my birth is that you have the first desire to kill, that is, the most essential desire to destroy, after grandpa used his flesh and blood to forge a knife, set the last demon luck in this world and officially grow and develop to maturity, and finally awakened by the memory knife, oh, my little cutie, so to speak, you may not understand a little, you can treat me as an alternative system, help you become stronger, by the way, my name is magic, this world, memory is the last magic knife, and I am also the last demon".

He laughed, laughing maniacally, and now he finally understood how much his grandfather had paid for his sword dream.

The demon's voice sounded in his head again, "My little cutie, seeing you like this, grandpa should be so distressed, look, my father's knife has been robbed, and he still feels sorry for himself here, what a person without conscience."

"Shut up", he yelled at Sunset, the wound cracking open again. He stood up and raised his sword to the north, "The King of the North."

"Demon, you said you can make me stronger, how can I become stronger", his voice was finally as cold as a weapon, a knife, and he was indomitable.

"You speak, demon"

"It really makes me sad, when I need it, my little cutie allows me to speak, hey, men are like that. ”

"My name is Demon, then what do you think, what does a demon need, my naïve child, no, it should be my innocent brother, after all, you were born in front of me, so angry, you were born in front of me", the demon lowered his voice, "What I need is killing, you and I are both knives, and knives are born for killing, through killing, sacrificing living beings, obtaining the key to the space gate and that endless life", the demon said seductively, licking his lips.

"Space gates, keys, lifespan, can I come to other spaces if I go?" he looked at Yi.

The blade of Yi showed a person who looked the same as him, but there were a few more magic lines on his face, "My brother, of course he wants to come back, of course he doesn't have to come back if he dies, hehe, and when you go to other spaces and come back, you only need to sacrifice half of the creatures in the past, see the half-price discount, how good, hehe."

"How much can I sacrifice, now"

"Oh, my brother, what have you done in this peaceful era, that you have so many sacrifices, oh, you are so boring, it is strange that you went to the slaughterhouse to be a butcher, but is it so easy to obtain the key to the door of the space? not enough, you still need to sacrifice your 50 years of life."

"You take it"

"It's really courageous, my good brother, you just need to hold on to your memories now, use all your strength, swing forward, and the door of space will naturally open to you."

After listening, he said, "Okay", and jumped from the top of the mountain, gravity made more and more blood ooze from his wound, and blood spots were flying in the air.

He swung forward with all his might, and this knife was the strongest he had ever swung. A black spatial crack formed, and he fell into it. The black hole vanished, leaving only his clothes and an ID card falling from the sky with Rogu written on it.