The Elder Scrolls (Nintendo Cinematic Universe)

The Elder Scrolls is a Japanese graphic novel series.

Arena
A court official must stop an evil advisor's uprising.

Arena

 * The setting begins in Tamriel on the 389th year of the Third Era, when Emperor Uriel Septim VII summons his advisor and Imperial Battlemage Jagar Tharn over concerns of betrayal from within the court. It transpires that his concerns were justified when Tharn is revealed to be the traitor, magically trapping the Emperor and his general, Talin Warhaft, in another dimension.
 * When Tharn proceeds to magically disguise himself as Emperor in order to usurp the throne, his conspiracy is witnessed by mage apprentice Ria Silmane, whom he murders before she can warn the Elder Council.
 * Tharn then summons demon minions to replace the Emperor's Guard and in his disguise he sends a court official and subordinate of General Warhaft to die in the Imperial dungeons.
 * Following her death, Ria uses her magic to take an incorporeal form, holding herself together long enough to inform the imprisoned court official of Tharn's betrayal and instructs them throughout their escape from the infamous dungeons. Past that point, she lacks the power to manifest physically and appears to the court official during dreams. She creates a key to allow the court official to escape the dungeons and teleports them to a different province through a mystical Shift Gate.
 * The court official is informed that the only way to stop Tharn is to get hold of the Staff of Chaos which holds his lifeforce. This staff has been split by Tharn into many fragments throughout the continent of Tamriel. Each time one is found, Ria appears to the court official the next time they rest, in order to provide the general location of the next fragment.
 * At the end of 3E 399 (a decade later), the court official finds the final piece and reassembles the staff. This, however, does not release the Emperor as all of the staff's power has been drained into the Jewel of Fire, an oversight by Ria.
 * The court official travels to the Imperial City to confront Tharn's minions, the court official finds the Jewel of Fire and touches it with the Staff of Chaos, this destroys both the jewel and the staff as well as releasing the Emperor.
 * The jewel also turned out to be where Tharn has stored his lifeforce and the destruction of the jewel resulted in his death.
 * As a token of respect and gratitude, Uriel Septim grants the court official the title of Eternal Champion, and Ria Silmane finally enters the afterlife.

Arena

 * Based on The Elder Scrolls: Arena.