Onimusha is finally returning to the action space next month after a 20-year hiatus at developer-publisher Capcom. Though a lot of the series’ trademarks are returning, like an intense focus on swordplay action, hordes of demons, a samurai protagonist, and the Oni Gauntlet, there’s plenty of new, too. There’s an “open-town” section of Kyoto, which is where this early Edo-period adventure takes place; there’s historical Japanese samurai Miyamoto Musashi as the protagonist this time, using the likeness of the late Toshirō Mifune; and there…