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[Candy Kappa]

Katana can be quite "fragile", there gotta be rocks or other non-snow elements under that snow that the swords should be damaged on. There is a reason why we are taught in TSKSR to angle our swords when going into contact with someone else's sword, swords aren't cheap, real katana at least. Although, Leo do have plenty of spares on the lair it seems.

And the sword would be wet, soaked in eventually melted snow... Rust-vile here they come.