On Mount Sagiri, a boy who looked no older than sixteen or seventeen kept swinging the long blade in his hands.
"...997, 998, 999, 1000."
The boy wiped the sweat from his forehead. Just then, a man wearing a Tengu Mask appeared silently beside them.
"Lin Guang, I've heard people have gone missing near the foot of the mountain. It may be a demon. Come with me."
"Yes, Grandpa Urokodaki."
Lin Guang put away his blade and followed Sakonji Urokodaki, countless thoughts swirling through his mind.
Giyu sent word yesterday, asking Grandpa Urokodaki to train a boy traveling with a demon to become a Demon Slayer. Looks like the story has already begun.
My system can finally activate, too.
Indeed, Lin Guang's soul was not from this world. He had been a shut-in on Blue Star.
After frequently staying up late watching anime and playing games, he had died suddenly at home. His soul had then been reborn into an abandoned baby in the world of Demon Slayer: Kimetsu no Yaiba.
Sakonji Urokodaki had later found and adopted him. The moment Lin Guang saw Sakonji Urokodaki's Tengu Mask, he knew he had crossed into the world of Demon Slayer: Kimetsu no Yaiba.
When Lin Guang arrived in this world, he had already been bound to a transmigrator's cheat ability, but he needed to fulfill one condition before he could activate it.
He had to kill a demon in front of Tanjiro.
"We're here."
Sakonji Urokodaki's voice pulled Lin Guang from his thoughts.
Following Sakonji Urokodaki's gaze, Lin Guang saw a faint light coming from a shrine in the distance.
As they approached the shrine, its light suddenly went out. Then two figures flew out from inside.
The boy in a checkered shirt swung his axe, slicing straight across the demon's neck and forcing it back.
At the sight of him, Lin Guang knew his guess had been right. It really is Tanjiro Kamado. Nezuko should be nearby, then.
Seeing the demon seize Tanjiro by the throat, Sakonji Urokodaki was just about to intervene.
Suddenly, Nezuko appeared beside Tanjiro and kicked the demon's head clean off.
At the sight, Sakonji Urokodaki recalled Giyu Tomioka's letter.
Is this the boy traveling with a demon that Giyu mentioned in his letter?
Just then, the demon's headless body began fighting Nezuko, while its severed head sprouted arms and entangled Tanjiro.
Urokodaki did not intervene, but Lin Guang could hardly hold back any longer. This was his best chance to activate the system.
Lin Guang parted his lips slightly and drew in a breath.
"Water Breathing! Fourth Form! Striking Tide!"
Blue water splashed from the blade as it sliced the demon's body in half at the waist, leaving it unable to move. The demon's head also lost consciousness as its body died.
Tanjiro let go of his axe. It fell to the ground, pinning the demon's head in place.
Then Tanjiro's voice reached Lin Guang's ears.
"Are... are you with the Demon Slayer Corps?"
Lin Guang shook his head. "My name is Lin Guang. I'm not a member of the Demon Slayer Corps yet, but I'll join someday."
Tanjiro said, "My name is Tanjiro, and this is my little sister, Nezuko. I'm sure you'll be able to join the Demon Slayer Corps."
"Thank you, but let's finish off the demon first." Lin Guang walked toward the demon's head on the ground, which had sprouted arms.
Just then, the unconscious demon woke up.
"What just happened? How did my body suddenly die?"
When the demon saw Lin Guang beside Tanjiro, it immediately began shouting.
"Hey! You're the brat who killed my body, aren't you? Get over here! I'm going to eat you!"
Lin Guang drew his Nichirin Blade and severed the demon's neck with one stroke. "I hope you don't become a demon again in your next life."
"Aah!"
A piercing scream tore through the sky.
Amid its screams, the demon dissolved into the air.
An artificial voice sounded in Lin Guang's mind.
[Host has killed a Common Demon. Myriad Worlds Treasure Box System activated.] [Current world-Demon Slayer: Kimetsu no Yaiba] [Each time the host kills a demon, there is a chance of a Treasure Chest dropping.] [System activation reward: 1 Novice Treasure Box.]
Lin Guang smiled faintly. It's finally activated.
Witnessing this unbelievable scene, Tanjiro took a step back, his mouth hanging open and his face filled with terror.
"Well done."
A man wearing a Tengu Mask appeared silently beside them.
"You've mastered the Breathing Style thoroughly, and you showed no hesitation when facing a demon. You did very well."
Hearing Sakonji Urokodaki's voice, Lin Guang pulled his attention away from the system.
"Grandpa Urokodaki." Lin Guang smiled faintly, then moved to stand behind Sakonji Urokodaki.
Then Sakonji Urokodaki turned to Tanjiro.
"I am Sakonji Urokodaki. You're the one Giyu Tomioka sent, correct?"
Hearing how Lin Guang addressed Sakonji Urokodaki, Tanjiro suddenly grew nervous.
"Ah... yes, that's me. My name is Tanjiro Kamado, and my little sister's name is Nezuko."
Sakonji Urokodaki's tone suddenly grew stern. "Tanjiro, what will you do when your sister eats a human?"
Tanjiro froze for a moment.
Seeing Tanjiro's reaction, Sakonji Urokodaki felt somewhat disappointed. Lin Guang, however, suddenly spoke on his own. "I would kill her with my own hands, then take my own life to atone."
Urokodaki was deeply heartened by Lin Guang's words.
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