Early that morning on Mount Sagiri, Tanjiro knelt beside the bed, watching the sleeping Nezuko with worry in his eyes.
Not long after he arrived here, Nezuko, who had never eaten a human, had fallen into a deep sleep.
Over the past six months, his teacher and Mr. Urokodaki had called people in to examine her many times.
Although every doctor said Nezuko was merely asleep, he was still worried sick.
What if... what if Nezuko never woke up again?
The wooden door was gently pushed open a crack, and Genya poked half his head inside. "Hey, time to go."
According to Genya, Mount Sagiri's hellish training was a necessary step on the path to becoming a Hashira.
The two current Water Hashira, including his teacher, as well as Makomo, a Kinoe-ranked Corps member he regarded as an older sister, were all exceptional talents who had survived Mount Sagiri's hellish training.
Every day now, he followed Genya with a sword in hand, repeating the training that the boys of Mount Sagiri had once undergone.
Haruto usually returned to guide them after completing his patrols and the missions assigned by the Demon Slayer Corps. For most of the remaining time, Mr. Urokodaki supervised their training.
After patrolling his territory, Haruto returned to the mountain and caught Tanjiro and Genya doing squats with logs on their shoulders in a clearing at the foot of the mountain, having finished their first mountain run.
"Keep your horse stance steady! Try to feel the movement of every muscle!"
Mr. Urokodaki strolled around with his hands behind his back. As he reached Tanjiro, he suddenly whipped a hand out and rained blows on his abdomen. "Tighten your core! Tighten it! Remember to maintain Total Concentration!"
In the six months since Tanjiro came to Mount Sagiri, what