@Tarlo
Why, yes, the bigger and heavier blade is much better for chopping than a katana. Sheer sword build itself, the random trash chinese sword is likely to be more resistant and less likely to break too, something important to consider when fighting against a fuck-yohuge axe.
But that doesn't matter, because any katana on Akira's hand becomes magically sharp enough to cut through trees, rock formatios, and iron bars (but not's Miyabi's Iron fans, those are under miyabi's plot armor magic)
Honestly, I'm suprised he hasn't just cut through the axe head yet and I would not be surprised if that's how this fight would end.