I traveled through hundreds of worlds at once

It was still dark in the morning, and Yi Hui and Shanhu, who had gotten up early, came to the forest near the village and started their morning lessons.

"Hui! Are you sure this is really okay?" Shanhu held up the flying bone and looked at the huge rock in front of him, with an expression that looked like he had made a mistake.

"Of course! As long as Shanhu can use the flying bone to cut this rock! Your new skill is complete!" Yi Hui patted his chest and shouted confidently.

"Use the flying bone to cut this stone?" Shanhu held up the flying bone in his hand, which had no blade at all, and his eyes twitched.