This video shows the fastest and easiest way to defeat Dark Yojimbo, with guarenteed success. It's good to know if you plan on farming Dark Yojimbo for equipment and Dark Matter.
As long as you skip the third battle and run straight through the cave, you can reset Dark Yojimbo by leaving and entering the cave. In this way, Dark Yojimbo can be fought an arbitrary number of times.
The armors used were:
Break HP Limit
Ribbon
Auto-Haste
Auto-Regen
There is about a 10% chance that someone will die in the first battle due to Kozuka. But no need to worry, it does not impact the chance of victory. I made sure to demonstrate this case in the video.
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