Recalling what Rota had told them before, Gyomei Himejima asked tentatively, "Mr. Feng Lian, do you mean the Demon Slayer Mark, Scarlet Blade, and Clear World?"
Wind Sickle nodded in satisfaction. It seemed they had remembered Old Heavenly Master's words. These three abilities could be considered essential standard equipment for dealing with the Upper Ranks.
Of course, that did not mean they could not fight the Upper Ranks without these three abilities. Against Upper Rank demons that were not too overpowered, it was still possible to prevail through one's own strength alone.
But if they wanted to face the top three Upper Ranks, these three things were indispensable.
Naturally, Rota could also teach them how to use qi. However, after centuries of research, he had determined the limits of the native humans in the Demon Slayer World.
Other than Hakuji, whom he had deliberately cultivated, even Taoyuan Long, who had lived until now, was only as strong as an ordinary Upper Rank.
As for the other disciples of the Celestial Master Mansion, most of them were only comparable to a Lower Rank. Qi cultivation was a foreign training method to the people of the Demon Slayer World. Achieving anything with it was truly difficult...
Rota had only established the Celestial Master Mansion because he wanted to leave behind some traces of his existence in this world.
Rota gazed heavily at the Pillars before him. It was indeed exceedingly rare to find ordinary people suited to qi cultivation, but these people were all Pillar-level Swordsmen of the Demon Slayer Corps. Anyone who became a Pillar possessed more talent than ordinary people to some extent. He could give them a little extra instruction.
He did not expect them to reach his level. At the very least, he wanted to make sure they