Overlord Volume 02

The Dark Warrior is the second light novel volume in Overlord series, It was released on November 30, 2012. It details about Ainz Ooal Gown as Momon and Narberal Gamma as Nabe, and their ascension to fame as adventurers in Re-Estize Kingdom.

Short Summary
Ainz decides that in order to learn more of this world, he has to live in one of its cities for an extended period of time. At the same time he decides to take on an adventurer persona by the name of Momon together with one of the battle maid's, Narberal Gamma, to gain some New world currency, fame, influence, and knowledge.

Full Summary
Ainz, together with Narberal Gamma, heads to E-Rantel under their alias names as Momon and Nabe while they take on their adventurer identities. Having to start out as the lowest ranking adventurer's, which is a copper plate, they head to an inn in order to rest up, while there they get into a small fight and Ainz gives away one of his YGGDRASIL potions as a compensation to a female adventurer. The next day they team up with the adventurer group called the Swords of Darkness to go on a monster expedition. Before leaving they are interrupted by Nfirea Bareare who wishes to hire Momon as an escort to Carne Village. His reason for doing this being the fact that the potion Ainz previously handed out has made Nfirea very interested in him. Ainz accepts his request if the Swords of Darkness can come along too which Nfirea agrees.

While traveling to Carne Village, a sinister group named Zuranon was lead by Khajiit Dale Badantel, a Necromancer, was offered assistance by Clementine, a former holder of the ninth seat of the Black Scripture, to work together to raise an massive undead army in the hopes of turning E-Rantel into a second undead city. To realize their scheme, they need to get a hold of Nfirea so that they can use a very powerful magic item, because of his magic talent that allows him to use any magic items. With him having left the city at the moment, there was no other choice but to wait for his return.

On their journey to Carne Village, they encountered a hostile group of Goblins and Ogres. During the fight between the goblins and ogres, Ainz uses this opportunity as a way to show off his strength and raise his fame. Eventually making their way to Carne Village they were all surprise that the village is fortified with a sturdy wall. The villagers have started to make defensive barricades to better defend themselves. Also using the magic item that Ainz previously gave to the sisters while saving them, they have now summoned a large group of veteran goblins that have been helping them with guarding the village and teaching the villagers how to defend themselves. It also turns out that one of the sisters, Enri Emmot, is a childhood friend of Nfirea.

During this time, both Enri and Nfirea exchange news. From Enri's stories of the deeds of the villager's savior, Nfirea discovers the mystery and realizes that Momon the adventurer's true identity is actually the magic caster Ainz Ooal Gown. Astonished, Nfirea then runs to the hill where Momon was watching the villagers practicing their marksmanship with the bow and arrow. Upon meeting him, Nfirea then ask if Momon is actually Ainz, shocking Momon. After confirming his identity, Nfirea sighs in relief and gratefully thanks him for saving the villagers and the girl he loves.

The next day they head into the forest to gather naturally grown Arnica Grass used for manufacturing potions. Ainz wanting to increase his fame, provokes the Wise King of the Forest into attacking them with the help of Aura. To Ainz disappointment, the Wise King turns out to be a giant hamster, still he decides that it might still has some use and makes it submit to him and makes it his pet. Everyone is impressed by the majestic form of the Virtuous King while Ainz sees only a cute hamster. He later gave her a new name, Hamsuke.

Upon their return to E-Rantel, the group splits up with Momon and Nabe heading to the Adventurer's Guild to register Hamsuke as their beast, and Nfirea with the Swords of Darkness returning to the pharmacy to unload the supplies and claim their reward. While doing this, Zuranon attacks, killing the Sword of Darkness and kidnapping Nfirea. On his way to Nfirea's house he meet's up with Lizzie Bareare, Nfirea's grandmother. Upon discovering that Nfirea has been kidnapped, he is hired by Lizzie to rescue him. They then set out to the cemetery where Zuranon has released their undead army to attack the city.

Breaking their way through a hoard of low undead, they eventually reach Zuranon's hiding place. Momon and Clementine distance themselves away from the group to start their duel, while Nabe and Khajiit and the rest of Zuranon battle against each other. After some time, with Ainz's permission, Nabe transforms into her true self as Narberal Gamma and kills Khajiit with her powerful eighth tier magic spell while Momon bear hugs Clementine to death. Upon defeating Zuranon and rescuing Nfirea, Ainz and Narbarel is given a huge boost in fame and rapidly advance to a Mythril rank adventurer. Meanwhile, back in the inn Ainz contacts Nazarick only to find out that Shalltear Bloodfallen has rebelled against them.

Chapters

 * Prologue
 * Chapter 1: The Two Adventurers
 * Chapter 2: Journey + Intermission
 * Chapter 3: Virtuous King of the Forest
 * Chapter 4: The Dual Blade of Death
 * Epilogue

Trivia
Web Novel
 * Instead of Ainz, Narberal Gamma becomes the Adventurer "Momon" alone, using illusion magic.
 * Verita uses same room with Momon. Momon does not like the smell from herb she used to cure wounds, so she gives a minor healing potion to her.
 * "Momon" first works as a porter of the Axe of Cyclone. As Nfirea Bareare and Clementine does not exist, they do not die and go their separate ways without big trouble.
 * Lizzie Bareare tries to learn how to make red potion from Momon directly, but is refused.
 * Momon introduces himself as an apprentice of Ainz Ooal Gown.
 * Momon defeats Khajiit by chance during his promotion test.