Oboro was in the beginning an impulsive and somewhat egotistical bandit chief of a fort near the village of Yamayura. He is very caring for his younger sister, Yuzuha, to whom he would bring Tusukuru to oversee her health. When Hakuoro becomes the leader of the country's rebellion, Oboro joins forces with him and swears eternal allegiance, with revenge for Tusukuru among his reasons, calling Hakuoro his brother. His "vassals", Dorii and Guraa, are always at his side, though their lord/ vassal relationship is never explained.  After the rebellion, Oboro becomes a general of the new country of Tusukuru, and leads a sort of "special forces" unit of vagabond swordsmen from his old bandit fort. He is constantly butting heads with Kurou over military matters, and it becomes a source of comic relief. At mealtimes, Oboro hates eating vegetables with a passion, to the point where eating a small amount causes him to gag.   Oboro's main weapons of choice are two katanas that he uses in balance with his good agility, making him a deadly fighter but quite inexperienced compared to the other main and supporting characters.    ~!Just before Hakuoro is sealed into a deep sleep, he names Oboro as the next emperor of Tusukuru. When Yuzuha passes away a short time later, Oboro goes on a journey of self-discovery across the lands to figure out how to be a good emperor, with Dorii and Guraa ever at his side. In the PC game, Oboro still goes on a journey, but to show of his sister Yuzuha's child that she received by virtue of Hakuoro's divine blood.!~

Everything about him is shrouded in mystery. The mask he can't remove. The past he can't unravel. And the very survival of the people who have chosen him as their leader. But what Hakuoro does know is this: he was gravely injured and left for dead in a forest. A kind young girl named Eluluu found him and nursed him back to health. He was welcomed into a barren land where strange creatures roam, an angry god seeks vengeance, an oppressive government slaughters the innocent, and a bloody war looms on the horizon. Will the masked hero liberate the people who saved him? Can he unlock the memories that elude him? Or will he remain a stranger even to himself? 
(Source: Funimation)

He claims to enjoy playing crazy or insane characters; Greed (Fullmetal Alchemist) and Asura (Soul Eater) being some of his favorites.

Chaos has taken hold of the land as a conniving general has unlawfully seized the throne of the mighty Yamato Empire. The only ones that stand in his way are a couple of familiar faces who must rally different kingdoms together and fight against the powerful Imperial army.
 
(Source: Atlus)

A three part OVA of Utawarerumono. The animation work will be done by the same staff that did the opening of the game the show was based on. The story will cover parts that weren't shown in the anime series. 
(Source: Moon Phase)

Included with the premium collection release of the PS4 remake of Utawarerumono: Chiriyukumono e no Komoriuta. The anime will tell the story of Kuon's childhood days.
 
(Source: Anime News Network)

DVD specials of comedic events that occurred during the story of Utawarerumono. The specials are included in the DVD box special disc.

Utawarerumono is a story centering around the masked protagonist, Hakuoro, who one day is found by a family of two girls and their grandmother in a nearby forest close to their village. He is badly injured and is soon found to have amnesia, so they take him to their home and treat him until he is well again. Hakuoro is soon accepted into their village where he stays and lives with them, but before long Hakuoro finds that life in this village is being oppressed by the greedy emperor who rules over the country their village resides in. Soon after, these negative actions taken towards their village result in him leading a rebellion against the emperor of the country which later lands him to become emperor of a vast new country which is named Tusukuru, after the well-respected woman who helped saved his life. 
After becoming emperor and things begin to calm down, Hakuoro soon finds out that peace is hard to maintain and finds himself constantly in battle in order to protect the peace of his country and his people. Eventually, he is led into many bloody battles in order to fight for the freedom of all those residing in Tusukuru. Along the way, Hakuoro meets several other strong warriors from several other countries and tribes who are fully accepted into Hakuoro's growing family. Many moments of hardship and laughter ensue as time continues but with Hakuoro leading the way, all others are confident in his ability to lead.