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Ou Sen

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Ou Sen

O Sen portrait

Ou Sen anime portrait

Ou Sen Sen (jap.), Wang Jian (chin.)
Biographical Information
Name Ou Sen
Gender Male
Status Alive
Hair Color Dark Brown
Eye Color Red
Relatives Ou Hon (Son)
Professional Information
Rank(s) General
Weapon(s) Glaive
Affiliation(s) Qin Military
Mou Gou Army (Former)
Ou Sen Army
Character Information
Location Kakuyou
State Qin
Manga Debut Chapter 201
Anime Debut Episode 55
Japanese Voice Horiuchi Kenyuu
As the head of the same family as the famous Ouki but of the main family. It is rumored that he is equally as talented as Ouki himself. However due to his dangerous ambition he never received King Sho's favour. It is said that he desires to become a king himself.

Shou Bun Kun talking about Ou Sen's ambition

Ou Sen is the current head of the Ou Family and a General of Qin who serves as Vice General in the Mou Gou Army. He is the father of Ou Hon.


Ou Sen appears to have a warrior's build and a long goatee. His helmet is unique with its lifelike face on both the back and the visor. A dragon's claw holds the top of the helm and speaks to the wealth the family has as such armor would be costly to make. The armor is black and his cape is white.


Ou Sen is rumored to have a secret desire to become a king. He is described by Ren Pa as someone who cares more for his own life than those of his subordinates or the battle, having no qualm with using troops to his own ends and has personally stated that he only fights battles which he can win. Similar to Haku Ki, the leader of the Six Great Generals of Qin, he is cautious as a general and goes to great lengths to set up an advantage or force opponents into an unfavorable situation.

He seems to be quite stoic and has not been shown displaying much emotion besides some shock when Ren Pa outplayed him on the battlefield. One curious trait which Ou Sen has exhibited is that his ambition often leads him to attempt to take enemy generals alive, seeking to make them his own subordinates.


Ou Sen's goal is to become a king.


As the head of the same family as Ouki, but of the main family, it is rumored he is equally as talented as Ouki himself. However, due to his dangerous ambition, he never received King Sho's favor. Mouten calls him the "Most Dangerous" person in Qin because of his aspiration to become a king. 


Sanyou Campaign ArcEdit

Ou Sen is first seen as his army conquers the Wei city of Sanbi with only his first wave of troops. Before the Battle of Sanyou started, Ou Sen bested Ren Pa by arriving first on the Rui Plains and taking the high ground of Mount Man for himself. From a hill, he observed his son strike with the vanguard unit before leaving with his troops. He was subsequently pitted against the Wei left army led by general Kyou En of Ren Pa's Four Heavenly Kings.

As his army fought that of Kyou En's, he pulled back his main army to the rear then arrives to reinforce commander Heki by giving him command of 5,000 Qin troops and tasks him with engaging General Kyou En. As he leaves, one of his lieutenants asks if that was a wise decision to which Ou Sen states that Heki will make excellent bait. He arrives with his main army at the Wei Di to catch Kyou En off-guard, killing the Wei troops stationed on the cliffs and re-capturing the position. Mentioning that defeated commanders can only expect death, he offers to spare both Kyou En and his personal troops if he swears his loyalty to him. He adds that the Wei general will become one of his close retainers and given lands, stating that his "kingdom" needs men skilled at warfare. When Kyou En rejects the offer by shooting at him, Ou Sen orders him taken alive and states that he did manipulate the battles to make it seem as though the Wei were winning. He is shocked when his troops are caught off-guard by the appearance of Great General Ren Pa and orders the officers to reform the troops, telling them to send word to Heki as well. He retreats with his army out of the gorge, stating that he only fights battles where victory is certain. As Ren Pa and Kyou En chase after his army,they enter a forest in which they discover a soil fortress that Ou Sen built, reminding them of Haku Ki who used to do the same.  

At the end of the Battle of Sanyou, when Ren Pa decides the Wei army should retreat, he says one of the reasons for their loss was the untouched army of Ou Sen who was waiting for the right time to strike.  

Coalition Invasion ArcEdit

Ou Sen had the role of a ''shield'' in the fight against the Coalition Army, as he was responsible for guarding the mountains that lead to the capital city of Qin, Kanyou.

In the battle, he was matched up against the Yan army of Ordo, consisting of many mountain tribes who excelled in territorial combat and could easily get to Kanyou if they were to defeat Ousen, which made his role exceedingly important.

The first day passed with little to no battle between the two armies, as the Yan army did not attack the Qin army that was stationed on the mountain.

On the second day, the Yan army began attacking. Ordo's troops slowly moved into the giant fortress, as they specialised in mountain combat. As they were beginning to unleash stronger attacks, an envoy from the Coalition Army HQ arrives and informs them that they need to preserve their strength and utilise attrition warfare. Due to this, the Ordo army backs out of the mountains.

At the beginning of the 15th day, when a messenger informs the officials in the court of the situation on the battlefields, he says that Qin's messengers have completely lost contact with Ou Sen and his army. Shou Bun Kun says that it is possible Ou Sen has simply ran away, as his ambition is to become king and has no interest in losing his life protecting Qin.

The true reason for Ou Sen's retreat was due to Ordo's troops striking the centre of the Ou Sen army, which was responsible for sending reinforcements to the other forts. After they lose their centre fort, the Ou Sen army retreats northwest. Making use of this, Ordo and his army begin pushing in to the mountains, and reach the mountain that leads them behind the walls of Kankoku Pass. The reason Ordo was able to navigate so well in the mountains was because he was a king of 50 mountain tribes, and had superb mountain reading skills

As he and his army reach the cliff, they begin climbing, however not knowing that Ousen and his army are right behind them. Ousen's army releases a barrage of arrows that take Ordo's army by surprise. Ordo rethinks how its possible for Ousen to catch him off guard, and realises that his army never moved northwest, but waited to ambush them.

Ou Sen tells one of his lieteunants, Mouchi to rapidly fire arrows not worrying about ammunition, because they have a good chance of wiping out a big part of Ordo's army. At the same time, he sends Mouryuu to capture Ordo and bring him alive. Mouryuu and a couple more soldiers quickly set out and reach Ordo, but Mouryuu gets killed easily. Qin reinforcements come and manage to hit Ordo with some arrows. Ordo and his army retreat and escape Ou Sen, but his 8000 mountain tribe soldiers that were the core of his army are slaughtered.


Strength 93
Leadership 94
Knowledge 97
Ambition Secretly 100

 Ou Sen has been stated to give off an immense pressure with his skills considered to be on par with the Six Great Generals of Qin in spite of being merely a deputy general. He seems to have a great level of insight and ability to predict his opponent's moves. Appearing defensive and cautious, he typically utilizes traps to take down his enemies in the form of a sudden surgical strike. 

During the Sanyou Campaign he effectively conquered 8 cities over a span of 2 months, besting both Mou Gou's conquest of 3 cities and Kan Ki's of 5 cities by using a lightning fast series of offensives.

Ou Sen has demonstrated impressive terrain manipulation since he was able to direct Heki to use a Wei Dei against Kyou En and had captured the important high terrain prior to the battle but a more impressive example is against the Yan army where he was able to use the mountains to such an extent that the opposing mountain tribesmen were amazed that he was a plain dweller and yet he was able to manipulate Ordo, a renowned mountain battle specialist, into a deadly trap. In both the Wei Campaign and Battle for Kanyou Pass, he also demonstrated a talent for building strong natural fortresses with a penchant for using the high ground. 

Ou Sen also possesses a staggering insight for battle and the tactics utilized by his opponents, often turning their strength against them. Kyou En's offence was blocked by allowing him to advance to the Wei Dei, after this failed due to Ren Pa's intervention the stragetical positioning of his core army in the fort created a safeguard and certain countermeasure to Ren Pa being able to regroup his forces after assaulting Mou Gou's base camp. Ou Sen also allowed his forts to be taken at the battle of Kanyou in turn surprise attacking Ordo and wiping out the core elite of his army. Knowing Ordo would not counter attack Ou Sen was also able to successfully counter Ka Rin's elite forces striking at the back of Kanyou Pass.  

Trivia Edit

  • Wikipedia lists him ("Wang Jian"), as one of the four generals "commonly known" as the greatest generals of the Warring states period. That's alongside Ren Pa ("Lian Po"),Ri Boku ("Li Mu") and Haku ki("Bai Qi").


Manga Edit

Ou Sen 's horse
Ou Sen's war horse
Natural fort
Ou Sen's natural fortress

Anime Edit

Ō Sen AS2
Ou Sen in Anime season 2
Ou Sen's War Horse anime portrait
Ou Sen's war horse
Ou Sen Stares At Ren Pa anime S2
Ou Sen stares at Ren Pa
Ou Sen And Kyou En Confront anime S2
Ou Sen confronts Kyou En
Ou Sen's Natural Fortress anime portrait
Ou Sen's natural fortress


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