A detailed and epic illustration of the Sanada Maru, the fortified stronghold engineered by Sanada Yukimura during the Siege of Osaka. The fort is depicted from a slightly elevated angle, showcasing its strategic design with steep earthen walls, wooden palisades, and hidden traps. The scene is set during an intense battle, with waves of Tokugawa soldiers attempting to breach the defenses. The defenders, dressed in the distinctive red armor of the Sanada clan, are shown valiantly holding their ground, firing arrows and hurling spears from the walls. The sky is ablaze with the colors of a fiery sunset, casting a dramatic light over the battlefield. Smoke rises from burning siege engines, and the air is thick with the sounds of clashing steel and battle cries. The image conveys the sheer determination and ingenuity that made the Sanada Maru legendary.

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