Overlord - Season 1

Momonga is the last online member of his game as it is being shut down. He wakes up and finds himself still in the game, but in a new persona. 

Momonga explores the new world he is in and makes plans with his guardians over how to handle the situation. 

Momonga sees that Carne village is under siege by invading forces and goes to rescue them. 

Momonga defeats the Sunlight Scripture that was invading Carne and launches a campaign to take over the world as Ainz Ooal Gown. 

Ainz and his battle maid Narberal take on aliases and join an adventurer's guild to learn more about the world. 

Momon and Nabe team up with a group of adventurers called the Swords of Darkness.

Momon encounters a fearsome beast known as the Wise King of the Forest - which he finds is a giant hamster. 

Momon and Nabe find that their friends were slain by a psychopath and sorcerer and track the killers down. 

Momon and Nabe fight Clementine and Khaljit. 

Shalltear falls into the possession of an enemy and Ainz must quickly make a plan to save her.

Ainz investigates the reason for Shalltear's revolt. He concludes that she is under an incurable status effect. He then goes to the treasury to retrieve some of Nazarick's powerful weapons.

Although Shalltear's skill set puts Ainz at a complete disadvantage, he steps forward into battle. He gave various world items to his guardians to ensure the safety of Nazarick in his absence. Now, all that is left is a battle of life and death! 

Ainz reminds Shalltear that he is the master of Nazarick and that his name carries the weight of all the supreme beings of Ainz Ooal Gown.