|Epithet||Six Great Generals|
|“||General Ou Kotsu was considered to be the strongest in brute strength out of the Six Generals.||”|
— Ken Fu talking about Ou Kotsu's caliber
Ou Kotsu had great achievements in every battles and he was made a member of the Six Great Generals. Along with the other members, he won many battles and was known throughout all of China. He once led an army against the state of Chu, but was injured during his encounter with a young Kan Mei, and forced to retreat.
As a member of the first generation of legendary Six Great Generals, Ou Kotsu was one of the most dominant military figures of the era.
Ou Kotsu was said to be the strongest in terms of brute strength out of the Six Great Generals, wielding a massive axe in battle.
By using his powerful might, Ou Kotsu leaded out in the frontline, empowering his troops.
- Ou Kotsu is based on real-life Qin general, Wang He.
- Real-life Ou Kotsu (Wang He) and Ou Ki (Wang Yi) were actually the same people. In Index of Shiji, written by Sima Zhen in the Tang dynasty, he stated that “王齮即王龁”, which literally translates to “Wang Yi is Wang He”. This explains both the lack of information about Wang Yi in most historical records and the many overlapping records about Wang Yi and Wang He.
- Ouki's death in historical text were written as "始皇帝三年，王龁战死", stating that Ou Kotsu died, further reinforcing the idea that these two individuals were the same person.
- In actual history of Battle of Chouhei , Ou Kotsu (Wang He) was Haku Ki's deputy, however in the manga and anime flashback, it was Ouki, further boosting the point that these two characters were the same person in history.