When the Chat Group had first unlocked its search function, Lin Yu had followed the power of search through this world.
But back then, his stowaway methods were nowhere near as refined as they were now. He could only possess Kamado Tanjiro's Nichirin Blade and hide himself within the shadow of the Chosen Protagonist's Destiny.
Thanks to Lin Yu, that Nichirin Blade received super-enhancements it should never have possessed.
Before leaving, Lin Yu had deliberately left the blade with Tanjiro. Partly because he liked the kid, and partly because he wanted to use the blade to locate this world.
Without question, empowered by that Nichirin Blade, Tanjiro was far stronger than he had been in the original story.
But he generally did not rely on the Nichirin Blade in battle. Only when facing enemies that were too powerful would he activate it and use the various abilities contained within the sword itself.
Having spent every day with Tanjiro, Inosuke naturally understood his temperament well.
He understood that Tanjiro's strength did not come solely from that mysterious "Mr. Sword." More than that, it came from Tanjiro's own grueling training and his almost monstrous tenacity.
Because the Nichirin Blade had been forged by Lin Yu using artifact-refining techniques, it possessed many Extraordinary abilities, including some methods of the Six Vault Immortal Thief.
For that very reason, Tanjiro's physical recovery speed far surpassed that of an ordinary human.
He could rapidly restore his stamina and heal his injuries through eating, allowing him to train tirelessly day and night.
By now, Tanjiro had trained more than twice as long as Inosuke and the others.
His diligence in training and monstrous willpower left even the Hashira-level monsters speechless.
Inosuke had seen Tanjiro's efforts with his own eyes.
So although he was unwilling to accept it,