I was a swordsman in ancient Japan

Travel back to ancient Japan in 1789 AD, the time of the Edo period, a long-standing tradition.
It starts with a lower-level samurai status, a saber, and a system that increases your personal level and sword skill level just by defeating or killing enemies.
……
"What will I do when I encounter a strong enemy? I will draw the second sword and change it to the swordsmanship that I am really good at - the second sword style."
"What if you still can't beat it?"
"Then I'll pull out my revolver and shoot the enemy in the head."
Ogata Yoshie, the "Great Swordsman", who has the titles of "Man Zhan Yoshizhai" and "Executioner Yidaozhai", answered in this way.