I googled this stuff... it's based on a true historical organised group of swordsmen in the late Edo period. A very quick read through reveals that their names appear to be based on actual characters... more reading for later

Also... isn't it dumb that she literally hangs around in the middle of each swordfight asking people if they're okay?

bruh all i could think watching this is theyre speedrunning gintama arcs
also bruhh this shi got magic in t?