Ken Seijin

Ten days later, in a forested area somewhere in Japan.

A man in his twenties was holding the hilt of his longsword with his eyes closed. In front of him was a tall tree with a diameter of half a meter. He held his stance for several seconds before he unsheathed his longsword with breakneck speed. There were no signs of movement from the tree until he sheathed back his sword to its scabbard. A diagonal cut can then be seen as the upper part of the tree slowly slid down.

"Bang!"