The Famous Swordsman, Starting From Okezama

Traveling through Japan's Warring States Period, he became the new Maori assistant under Oda Nobunaga's command.
Fortunately, it comes with a built-in system, and you can understand the unparalleled secret by killing enemy generals.
It rains heavily in the tub, and Imagawa Yoshimoto is taking shelter from the rain. The Oda army attacked like crazy, but I silently delayed, waiting for the harvest.
"The enemy general, Imagawa Yoshimoto, has been claimed by my new assistant, Maori!"
Cut in two, the head is obtained, and the new secret is obtained!
Oda Nobunaga: "Okay! From now on, you are the Black Mother Clothes!"
I looked at the master of the painting and weighed the famous sword Sect Sanzamon in my hand.
In the troubled times of the Warring States Period, fame only lies on my blade.