Saburo, a high school student from modern times, is transported back to the Sengoku era (1549), where he meets a young Oda Nobunaga. Mistaken for Nobunaga, Saburo is taken to the Oda castle and begins living as the warlord. Lacking experience in battle and leadership, Saburo struggles to understand the Sengoku era’s values, causing friction with the vassals. Despite this, he and the Oda family edge closer to their dream of unifying
