In Garaku, a city plagued by murder and organized crime, a mysterious old man is known to sit alone on a bench with his katana. One day, he is harassed by a pair of thugs, but unbeknownst to them, the elder is extraordinarily skilled with his blade. As he cuts down the nuisances, his prowess attracts the attention of a young man who is in a bind with a yakuza clan. Left with no other choice, he decides to utilize the old man's strength, which may have unforeseeable consequences.