Known throughout the history as: Juuchi Yosamu, 10000 Cold Nights
Archsword Possessor(s): Sengo Muramasa
Juuchi Yosamu (10,000 Cold Nights), crafted by Muramasa – in a contest, Sengo Muramasa suspended the blade in a small creek with the cutting edge facing the current. Muramasa’s sword cut everything that passed its way; fish, leaves floating down the river, the very air which blew on it.
One of the 111 Archswords of the Sword Temple