Second Battle of Carne Village was a conflict in which the combined forces of the "Giant of the East" attacked in the middle of the night.
Months earlier, Slane soldiers disguised as Baharuth Knights slaughtered residents in Carne to run up tensions between Re-Estize and Baharuth, while also luring in Gazef Stronoff into a trap to execute him. Momonga (having renamed to Ainz Ooal Gown) saved the village, then Gazef, and began to secretly fund the village's rebuilding.
As Nfirea was being escorted to Carne, his escort guards came upon a Goblin Troop with higher intellect than wild goblins. As the lead goblin talked for a peaceful accord, Enri arrived and defused the situation due to knowing Nfirea. While Enri did not understand, Nfirea pieced bits of information from her to realize Momon was Ainz Ooal Gown and was indebted to him for saving Enri, asking only to learn how to craft the red potion.
Enri Emmot, upon learning of a disturbance in the Tob Forest, sought the aid of the Adventurer's Guild only to not receive much help. While in E-Rantel, she informs Nabe of her predicament and then proceeds to buy new weapons and gear for her Goblin Troop before returning to Carne. Upon her arrival in Carne Village, during her absence, the Village Council unanimously voted to have Enri become the new Village Chief.
Ainz Ooal Gown, finding out for himself despite Lupisregina's orders, searches for the ones causing the problems in the forest- The Giant of the East and Demon Serpent of the West. He then meets and subsequently kills Guu (the Giant of the East) for his commentary on his name and spares Ryraryus Spenia Ai Indarun (the Demon Serpent of the West) for his surrender. Afterwards, Ainz inquires Ryraryus of his forces, including Trolls.
Around midnight under a full moon, the Goblins spotted a horde approaching from the forest and the alarm bell sounds to warn the villagers of impending invaders. Enri awakens and realizing the bell urges Nemu to get ready, and the two exit their home to reach the shelter stations. But as Enri is the Chief now, she leaves Nemu with her neighbor to watch over; alone, Enri ponders if some cruel and evil god is bringing tragedy upon her home. She joins her Goblin Troop and they appraise her of the situation.
To Be Announced
Carne's defenses are tested and proven by this assault, with Jugem leading the defensive combat against the (zombie troll) Giant of the East. Ainz had intended to see if his "investment" in the upkeep of Carne was worth his expenses, thus upon seeing their adaptation and combat coordination did Ainz feel that they were indeed worth his interactions.
Nfirea confesses his feelings for Enri in the aftermath, which she reciprocates. She demanded that he never again endanger himself like that, wanting him to stay with her. From this experience, Enri gained new leadership abilities which were later beneficial. While unintentional, Ainz had actually helped Enri and the Goblin Troop gain experience necessary for the second horn. By the time of the Third Battle of Carne Village, Enri had leveled up on her 'Commander' character class and unintentionally met conditions which summoned the 5,000 member Goblin Army upon desperately blowing the second Horn.