The best chapter so far and it's not even close.
Man, even after his death Inshun is unearthing himself before he reaches heaven. Such a tragic backstory filled with trauma that he swept under the rug with the goal of being invincible. I would honestly much rather have a whole story dedicated to Inshun due to the sheer emotional volume the readers must be experiencing reading this fight and aftermath than the one we're witnessing with Musashi.
But then again, this is what makes these characters' lives so awe-inspiring. The rise and fall, the sacrifices among the things received, and the conclusion wrapping everything up to give us a message. Let's see how Musashi can learn and grow from this battle.