The universe begins with Demon Slayer: Kimetsu no Yaiba

"From now on, it's up to you to see if you can sublimate what I taught you."

"There's no need to say more about your senior brother Bai Yu. His talent is higher than Giyu and you. If it weren't for waiting for you, he would have become a powerful presence in the Demon Slayer Corps just like Tomioka Giyu."

"As for whether you can participate in the final selection of the Demon Slayer Corps, you still need to pass the final test."

--"Come with me!"

After Rintaki Sakonji finished speaking, he disappeared in a flash.

"Let's go!" Bai Yu said to Tanjiro, and immediately followed him.

Tanjiro also followed behind, with the three men Taki Sakonji in the front, Shiroha in the second, and Tanjiro following in the end.

In the end, Nintaki Sakon brought Shiroha and Tanjiro to a relatively open space in Saagiri Mountain. After a year of reincarnation, snow fell again on Saagiri Mountain.

In the open space, there is a huge round stone standing there, with a thick hemp rope tied to the stone. It must have been dragged here by Nintaki Sako recently.

"Tanjiro~ As long as you can cut off this huge boulder, I will allow you and Bai Yu to participate in the final selection of the Demon Slayer Team." Ningtaki Sakonji finally explained to Tanjiro.

After saying that, he left quietly again.

Tanjiro called several times in the direction in which Nintaki Sakonji left, but he did not stop Nintaki Sakonji as he left.

Looking at the huge stone in front of him, Tanjiro became a little suspicious. Can such a huge stone really be cut off with a knife in hand?

Thinking about it, Tanjiro looked at Bai Yu, and then asked: "Senior Bai Yu, can you cut off this boulder?"

Hearing this, Bai Yu nodded and said lightly: "Okay!"

"Really? Senior Bai Yu! Can you show me how?" Tanjiro couldn't wait to see how Bai Yu cut off the boulder.

"No." Bai Yu rejected Tanjiro's request without much thought.

"Why?" Tanjiro was puzzled by this.

"This is the final test that the old man gives you, so I can't give any demonstration." Bai Yu replied.

In addition to this reason, the reason why Bai Yu did not give a demonstration is that there is only one such boulder. If Bai Yu cuts off the stone, it will be difficult to find the same stone for Tanjiro.

Another point is that as mentioned in the words, this is the final test for Tanjiro, and Bai Yu does not want to interfere too much.

"Use your own brain and think carefully about what the old man said, don't be unable to do it for the rest of your life!"

After Bai Yu finished speaking, he also walked away.

"Senior Baiyu!" Tanjiro was a little at a loss.

Soon, Tanjiro was the only one left on Mount Saagiri, and the cold winter wind and drifting snow danced leisurely in the mountains.

The silence around him made Tanjiro fall into thinking. The words of Shiroha and Ningtaki Sakonji continued to echo in Tanjiro's ears.

"Sublimation? Are all the things I learned just superficial and not the essence?" Tanjiro asked secretly in his heart.

Thinking about it, Tanjiro tried to swing his sword. When the blade struck the boulder, it made the sound of metal hitting a hard object.

This time, Tanjiro's whole body was shaken and numb.

Time passed like this for another half a year. During this half year, without the guidance of Nintaki Sakonji, Tanjiro repeated his previous training every day and tried to cut off the boulder.

Bai Yu would also take the time to compete with Tanjiro, but Tanjiro always lost miserably.

"Senior Bai Yu, am I very useless~ Half a year has passed, and I still haven't cut off the boulder."