So, in the end, the Demon Slayer World's power level was simply too low. The appearance of demons—beings that didn't belong—already represented the greatest power the world had to offer. No matter how hard Ryuhei Ubuyashiki tried, he couldn't defy the heavens and break through the limits of the Demon Slayer World's power.
Or rather, Ryuhei Ubuyashiki had already been struggling to break through.
But breaking free of the world's limits entirely required immense effort and opportunity. Ryuhei Ubuyashiki had done too many wicked things and reaped what he'd sown. The Overlord of Fear had set his sights on him, leaving him no chance to keep trying to break through.
Tap, tap, tap.
Shinji's fingertips lightly rapped against the desk as his thoughts gradually wandered.
After organizing the materials on Breathing Techniques and demons, Shinji had realized that these two systems, representing good and evil in the Demon Slayer World, were both fundamentally methods of developing the body.
The difference was that Breathing Techniques respected the body's natural structure. They drew out the power hidden within the human body while working within its original framework.
Demons, on the other hand, completely abandoned the body's original structure and the balance that allowed each organ to perform its own function. They used flesh and blood as their foundation, growing stronger by devouring the flesh and blood of other living beings.
The former was conservative and focused on technique. The latter was aggressive and knew no bounds.
In terms of how far they'd been developed, generations of Demon Slayer Corps swordsmen had clearly advanced Breathing Techniques much further than demons, who had to fight their bloodlust day after day.
Yet demons were undoubtedly stronger overall.
From Shinji's perspective, that was because Breathing Techniques could only draw upon power at the level of the