In a village near Mount Sagiri, Yuko bought some tools and started hammering away at the lumber. After several days of clanging and banging, she quickly put up a small hut nearby.
Though Sakonji Urokodaki was somewhat puzzled, he did not say much, simply assuming it was a girl's habit to live alone.
Sakonji Urokodaki's training was basically held in the mornings. At first, Yuko followed him to watch for two days, and it was mostly ordinary Breathing Technique and combat training.
After watching for a few days, Yuko stopped going up the mountain in the mornings. Instead, she stayed at the foot of the mountain to watch over Nezuko, allowing the master and disciple to train in peace.
Tanjiro's afternoon training consisted of various mechanical obstacles and climbing steep cliffs.
Once Tanjiro gradually became proficient, Sakonji Urokodaki stopped secretly keeping an eye on him. Yuko, on the other hand, never missed a day. In the afternoons, she took over from Sakonji Urokodaki and went up the mountain to watch Tanjiro.
Her attitude was like that of a mother doting on her child, afraid that the slightest setback would ruin him.
Sakonji Urokodaki was utterly baffled. After this continued for several months, he finally could not hold back and asked, "Why does someone like you guard Tanjiro every step of the way?"
What he really meant was, Are you that free?
With such formidable strength, why waste time here for no reason?
Sakonji Urokodaki had never seen Yuko make a move, but she had never once triggered any of the mechanisms he had set up on the mountain. She walked through the mountains as easily as on level ground.
Yuko understood what he meant and answered with a question instead. "What does Master Urokodaki think of Tanjiro?"
After a brief