Samurai Warriors - Season 1 - Eps 6: The Caged Heart
As the Tokugawa clan's messenger, Nobuyuki heads to Aizu to inform the Uesugi clan of their punishment following the battle of Sekigahara. He meets Kanetsugu Naoe, who refuses to accept the severe, and almost cruel, demands, but Nobuyuki refuses to budge too. On the other hand, while Yukimura escaped the death penalty, he was leading an empty life, without being able to find the "meaning of his life" that Nobuyuki had asked him to reconsider. But one night, things start to get noisy in his vicinity.
About Samurai Warriors

Title: Samurai Warriors
First Air Date: 2015-01-12
Last Air Date: 2015-03-30
Status: Ended
Rating: 7.7/10 (from 6 votes)
Language: JA
Seasons: 1
Total Episodes: 12
Network: TV Tokyo
Genres: Animation, War & Politics, Action & Adventure
Production Companies: Tezuka Productions, TYO Animations
Synopsis
In late 16th century, the era of civil war that tore Japan over two centuries is nearing its end and the regional warlords who survived the bloodsheds are ready for a final showdown. In the battlefield where your best ally turns out to be your worst enemy, only the shrewdest can come out alive.
Cast

Takeshi Kusao
Yukimura Sanada (voice)

Daisuke Ono
Nobuyuki Sanada (voice)

Yuko Nagashima
kunoichi

Tomokazu Sugita
katou kiyomasa

Nobuyuki Hiyama
masamune date

Shinichi Yamada
sakon shima

Hideo Ishikawa
hideyoshi toyotomi