Toyotomi Hideyoshi is on the verge of unifying the realm, and all that remains is the Odawara Castle protected by the "Lion of Sagami" Ujiyasu Houjou. Hideyoshi's personally trained generals — Ishida Mitsunari, Katou Kiyomasa, and Fukushima Masanori — as well as Ōtani Yoshitsugu, Shima Sakon, and Naoe Kanetsugu are all on the frontline of the battle. Amidst the battle formation are the two young warriors of the Sanada household: older brother Nobuyuki and younger brother Yukimura. As the stalemate begins to break down, Sanada Yukimura rides on a lone horse into the fray. His brother follows him right after.
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(Source: Anime News Network)

According to the presentation, the anime will cover the Siege of Ueda Castle.

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