Started the game this weekend, and thought it was strange when I got the first spell and it's called "Vorpal Blade". In a game about the end of the Ming Dynasty, such an English word seems like an odd choice for the first spell. It doesn't even have the dismembering/beheading properties vorpal weapons have in D&D.

What's the name of this spell in the original Japanese? I'm wondering if it got localized to this, or if it's in the original, too.