gobujo
A cup of sake purchased for drinking on the bullet train.
If by "female lord of the castle" you mean Nobunaga's aunt Otsuya, I wonder if it is a good name for a brand of sake since she was crucified and killed by Nobunaga in the end, but the Iwamura Castle guide says, "It is said that she governed the castle well and protected her people to the end. ...
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