The Ambition of Oda Nobuna - Season 1 - Eps 6: Sunomata One-Night Castle
Nobuna plans to build a castle at Sunomata near Nagara River which would allow her to conquer Mino. Despite Yoshiharu wishes to lead the task, Nobuna refuses and assign it to her other Generals as not to be seen playing favorites. However, Sunomata is near Inabayama castle and their attempts to build are repelled by Yoshitatsu's forces. Reluctantly giving the task to Yoshiharu, Nobuna and Katsuie leads most of the Oda army to Kisogawa to divert Yoshitatsu's attention while Yoshiharu, Hanbē, Mitsuhide, Goemon and Inuchiyo leads a small force to secretly a build a castle at Sunomata during the night. Meanwhile, Yoshitatsu's Generals Inaba and Ujiie are starting to question their lord's leadership after Hanbē's defection. Yoshitatsu sends Inaba and Ujiie to lure Nobuna's forces at an abandoned gold mine in a valley. Unknown to everyone, Yoshitatsu real plan is to kill everyone there by trapping them in the valley after setting it on fire. But much to Yoshitatsu rage, he learns a castle has been built at Sunomata the following morning and sends his army to destroy them. As Yoshiharu and the others hold off the Mino army until reinforcements arrive, Nobuna manages to escape the valley and convinces Inaba and Ujiie to defect to her side as their combined forces help the defenders of Sunomata and defeat the Mino army. Nagamasa tries to use the battle to launch a surprise attack on both sides only to encounter Nagahide's army who expected this. With Yoshitatsu captured and Mino now under her rule, Nobuna decides on Yoshitatsu fate. Much to Dōsan's anger, Nobuna spares Yoshitatsu's life. As he gets drunk in anger, Yoshiharu makes Dōsan understand Nobuna's reasoning and has him see the newly built town of Gifu and Gifu Castle, which Nobuna built in his honor. (Gifu means stepfather.)
About The Ambition of Oda Nobuna

Title: The Ambition of Oda Nobuna
First Air Date: 2012-07-09
Last Air Date: 2012-09-24
Status: Ended
Rating: 6.482/10 (from 28 votes)
Language: JA
Seasons: 2
Total Episodes: 12
Network: AT-X TV Tokyo
Genres: Sci-Fi & Fantasy, Animation, Comedy
Production Companies: Madhouse, Studio Gokumi
Synopsis
The historical romantic comedy follows 17-year-old high schooler Sagara Yoshiharu who one day time-travels to the Sengoku period, where all the major Samurai lords are cute girls. Yoshiharu meets Oda Nobuna, the girl counterpart of Oda Nobunaga, and begins to serve her as a substitute of Kinoshita Toukichirou, who has been dead in the world.
Cast

Takuya Eguchi
Yoshiharu Sagara (voice)

Kanae Itou
Nobuna Oda (voice)

Hitomi Nabatame
Katsuie Shibata (voice)

Rei Matsuzaki
Nagahide Niwa (voice)

Sayuri Yahagi
Mitsuhide Akechi (voice)

Masumi Asano
Hisahide Matsunaga (voice)

Tomoko Kaneda
Goemon Hachisuka (voice)

Misato Fukuen
Inuchiyo Maeda (voice)

Yui Ogura
Hanbē Takenaka (voice)

Emiri Kato
Oda Nobukatsu (voice)