Out of nowhere, Shiroe finds himself in the city of Akihabara, inside the game "Elder Tale". Thirty thousand Japanese players have been locked inside the game! The world on the other side of the screen becomes reality, and amidst the chaos Shiroe finds his old friend Naotsugu. And as they relax at finding one another, they meet the powerful assassin "Akatsuki". Akatsuki has a request to make of Shiroe...

The Apocalypse has locked thirty thousand players inside the game, and no one knows what to do. The larger guilds are taking over Akihabara, and outside the city violent groups are Party Killing other players. A young female member of Marielle's "Crescent Moon Alliance" is trapped in Susukino, far to the north, and needs their help. Shiroe feels somewhat embarrassed, but makes a decision.

Serara, a young female member of the guild "Crescent Moon Alliance", is trapped by mysterious men in the northern city of Susukino and needs help. Shiroe and his friends travel to reach her. Annoyed by the game's tasteless food, they travel northwards, and go inside "the depths of Palm", a crumbling series of old mining tunnels. There they meet creepy monsters...

Shiroe, Naotsugu, and Akatsuki reach the northern city of Susukino, and safely meet Serara. With the help of the mysterious swashbuckler Nyanta, they plot to leave Susukino. But the evil guild Brigantia wants to stop them. The high-level monk Demikas attacks them. Can they overcome the odds?

Shiroe and his group take Serara southwards. On the way, they stop at the house of one of the "People of the Land". The people of the land were originally only characters in the game, with no personalities or unique traits of their own, but as Naotsugu talks to them, something seems odd... The party gradually realizes that the world isn't the same as it was when it was a game.

Shiroe returns to Akihaba and Marielle tells him what the town is like. The initial chaos has subsided, but the larger guilds are in control, and evil guilds are tricking new players and taking advantage of them. Shiroe is angred by this, and tells Naotsugu, Akatsuki, and Nyanta of his plan. And then he tells the Crescent Moon Alliance that he's going to clean up the city of Akihabara.

Nyanta told Shiroe the secret of making real food in this world. With Marielle's help, the Crescent Moon Alliance begins a fast food stand, and their "Crescent Burger" is hugely popular with players who are sick of tasteless food. BUt Shiroe's real goal isn't to sell hamburgers, and with Henrietta he begins to work on the next phase of his plan.

After the success of their Crescent Burger, Marielle and Henrietta meet with the members of the major crafting guilds of Elder Tale: Karashin of Shopping Street 8, Michikata of the Marine Agency ,and Roderic of the Roderic Merchant Association. They use Shiroe's plan to dangle the secret recipe of the Crescent Burger in front of them, and the talented account Henrietta opens negotiations. What she wants is...

To make the city of Akihabara safe, Shiroe calls all the major guild masters to the guild building. His goal is to create a Round Table Conference, which will rule the city. But everyone there wants something different, and his plan is about to go bad. What amazing trick does Shiroe have? Meanwhile, behind the scenes of the conference, the plan to free the younger players from the evil guild Hamelin continues. The strategist SHiroe's quiet battle in Akihabara continues!

Shiroe confronts the 10 guild masters who represent Akihabara with the need to revitalize the town and bring peace and order. His calm and forceful manner brings them over, and the government of Akihabara, the "Round Table", is founded. After this work is done, his guild, "Log Horizon", joyously moves to their new location. That night, Nyanta fixes them his special curry.

The Free Cities of Eastel are the first to notice the founding of the Round Table. They send a messenger to Akihabara and invite Shiroe and Crusty to their conference. What are the nobles planning at their ice-covered palace? Meanwhile, Minori and Touya and the other new playesr are going on a camping trip at the beach to learn to fight. Marielle forgets her role as leader (?) and enjoys the salt air fun.

The young players travel the Xantleaf peninsula at the camp. Minori, Touya and Serara meet up with new players Isuzu the bard and Rundel Haus the sorcerer. They head into the "La Granda Forest" dungeon, where skeletons await them. The easily-spooked Serara, the strong-willed Touya, and the proud Rundel Haus... will the five of them be able to work together in their first party fight?

Shiroe, Crusty, and Michitaka are invited to the palace by the Free Cities of Eastel. The nobles of the land invite the three of them to various meetings and seem to be trying to find out more about Akihabara and the Round Table. Crusty is attracted to the daughter of Duke Cowen, who is noble, beautiful, but seems somehow lazy...

Shiroe and Akatsuki are invited to the room of the mysterious mage Reagan. Shiroe is shocked at the revelations he offers about the world of Elder Tale.

Touya and Minori and the rest of the players in the training camp are hitting a wall with the way they fight. And Minori's suggestion is that they introduce themselves to one another!

Just as the Sahaugin attack begins on the Zantleaf peninsula, the goblins are seen advancing further inland. Will they attack Laynessia's homeland, Maihama, or Akihabari?

The lords of the Free Cities of Eastal begin an emergency conference to discuss the goblin invasion. The protectors of the land people, the Izumo Knights, are missing, and they'll have to depend on the adventurers.

Princess Laynessia Cowen vows to go to the city of Akihabara herself and beg the adventurers for help against the goblins. The members of the Crescent Moon Alliance can't conceal their excitement at meeting a real princess.

Zantleaf is attacked by monsters from both the land and the sea, as the adventurers continue to defend it. Inland, Crusty's army launches a raid on the goblin's main force. At the town of Choushi by the sea, the new players are fighting too.

Rundelhaus hid from his friends that he was one of the land people, but the price of fighting off the dire wolves was that he took a fatal wound. If they can't save him, he'll die and he won't revive.

A victory party is held at the palace of Eternal Ice to celebrate the adventurer's defeat over the monsters. Crusty takes the princess's hand and leads her in a dance signifying the reconciliation between the adventurers and land people.

Fall has come to Akihabara. After defeating the monsters, Shiroe is fighting a losing battle against paperwork, but the town is filled with cheer as the first event the Adventurers have ever had, the "Scales Festival", is approaching.

The second day of the Scales Festival in Akihabara arrives. Akatsuki has gotten closer to Shiroe, and so is very happy all day, and even seems to be enjoying her fights with Naotsugu. Meanwhile, Minori is uncertain with how to deal with her feelings towards him, and goes to speed to Karashin. Karashin is overloaded with paperwork so she decides to help. It seems like a lot of land people merchants have come to Akihabara...

Akihabara is amazingly busy since the Scales Festival began. There are many land people in town, causing accidents, spreading rumors, and starting couples' fights, and even Shiroe can't deal with them. An influential noble named Marves arrives from Minami to see Laynessia. Laynessia tries her best to deal with him, but he gets closer and closer to her...

Marielle and Henrietta put on a fashion show as the town reels from the Minami decoy operation. Akatsuki walks down the runway in her colorful clothes, but Shiroe is nowhere to be seen. That night, Shiroe is met by a beautiful and enchanting "queen of darkness." Shiroe is tempted he reaches the heart of the conspiracy...

It's been six months since Shiroe and the other adventurers have been trapped in "Elder Tale". As Akihabara moves into late fall, the city is excited for the cultural fair. But Shiroe is ignoring the fun and speaking in secret to a land person, Kinjou, who controls the world's currency flows. When negotiations are over he tells his friend's leaving the city. The long-awaited second series of "Log Horizon" begins a new adventure!

Shiroe, Naotsugu, and Regan head to the northern city of Susukino, which was once run by the evil and violent Briganitia guild. They're looking for high-level adventurer's to help them get the the "Sacrifice Clan's Gold". Shiroe visits an unexpected person. Meanwhile, Naotsugu and Regan walk through the frozen town and find a small but pretty girl named Tetra. She calls herself a "galactic idol", and she's very irritating, but her level is 92...!?

Shiroe and his friends have come to the Depths of Palm to reach the Sacrifice Clan's gold. The underground labyrinth is filled with powerful monsters that wear them down in a war of attrition. Meanwhile, Akihabara, Akatsuki hears about the "Teachings". She's very interested to know that by completing a high level raid, she can greatly improve the level of her techniques.

It's almost Christmas in Akihabara. At Lenessia's mansion, Marie and Henriette are all visiting. Lenessia is smiling, but she can't open herself up to the adventurers because of how different they are. Akatsuki, who has been tasked with guarding the princess, is the only one who isn't having fun. She thinks of Shiroe and worries about her own powerlessness. Then, in Akihabara in December, a shocking event occurs.

A man appears in Akihabara and begins killing adventurers with powerful Royal Guard equipment. Lenessia is shocked to learn that he is one of the Land people, of the Kunie clan. Akatsuki goes to put a stop to him herself, as the West Wind Brigade scouts find him...

Akatsuki is defeated by the murderer on Christmas Eve. She awakens to find herself in bustling Shibuya station in the real world. She wanders through the city as if escaping from something, and then appears on a quiet beach. Shiroe is there.

Akatsuki revives at the Cathedral and asks the others for help to defeated the murderer. She trains with the top members of D.D.D. and the West Wind Brigade in an attempt to learn the Teachings.

A full raid of 24 party members has been formed to defeat Nerelith! The maidens gather to defend Akihabara! Meanwhile, Lenessia and Henrietta head beneath the Guild Building for a certain mission...

On Christmas Eve, Shiroe and the other members are fighting the level 97 boss monster "Luseat of the Seventh Garden." But two more boss monsters appear in the middle of the battle, and they are overwhelmed. Shiroe is caught in the fires of "Ibrahabra of the Third Garden"...

William, the leader of the combat guild Silver Sword, faces a great crisis as his guild has been defeated and is thinking of going home and quitting. He gives an inspiring speech to rally them into the fight once more.

With honesty and renewed sense of comradery the team has a small chance of winning an unbeatable raid.

The final boss, Uru of the Ninth Garden vs the villain in glasses, Shiroe is up against what could be the strongest boss in this new world.

It's February 14th! Akihabara is filled with excitement as the adventurers enjoy their first Valentine's Day. Marielle and Isuzu try to make cookies out of Kokonia fruits, which are said to make someone fall in love with you. Meanwhile, in the Log Horizon guild house, Tetra puts Akatsuki and Minori up to cooking something for Shiroe.

When Elder Tale was a game, there were talented solo players who would come together whenever they felt like it and defeat difficult raids. Their name was "The Debauchery Tea Party." Now, their leader, the cheerful girl Kanami, is traveling through the vast lands of the Chinese server on her way towards Yamato.

As spring comes to Akihabara, Shiroe decides to send Minori, Touya, Isuzu, Rundelhaus, and Serara on a quest to get the magic bag, a convenient and critical item for high-level adventurers. The 5 excitedly put together their things and get ready to go on a journey.

The gang sets out towards the redstone mountains to get their magic bags. On the way, they meet a party of merchants who are being attacked by monsters. They save the merchants but are overwhelmed, when a girl who looks just like Shiroe saves them.

Continuing on their way to the Redstone mountains, the gang encounters a mysterious group: the Odyssey knights, a group of players who'll do anything to get back home. Their eyes are strangely lifeless, and they're carrying a strange altar that allows its users to ressurect immediately.

Dareila joins the party at the Boxurt mountains, and the group stops at the town of Saphir. Isuzu learns that the reason the land people enjoy her songs so much is because the world only has 42 songs in total. She gets very sad and stays in her room, but then a giant flock of wyverns descend upon the town.

A massive flock of wyverns suddenly attacks the town of Saphir! The party tries their best to protect the town, but the Odyssey knights are constantly flinging themselves to their deaths. Meanwhile, Roe-2 looks at the brutal combat and doesn't even blink an eye...

A Minami plot was behind the massive wyvern attack on Saphir. To stop the plot, Nyanta attacks the train carrying the Minami general alone. But he's faced with the sorcerer he defeated long ago, the man who trapped Serara in the far north, Londark.

Operation "Red Night" is canceled and the kids come home to a joyous reunion. They've gotten their magic bags and succeeded in their quest. But a strange man is going around Akihabara asking all the girls to marry him.

Shiroe receives a letter from his second character on the lunar test server. As the situation in Akihabara deteriorates, it offers him hope.

Isaac and the Black Sword Knights are responsible for training the Maihama army. While he's in Maihama Isaac gets to know the new crown prince of Maihama, a young boy named Iselus. Iselus respect looks up to Isaac and respects him.

At a party for the crown prince's birthday, assassin's make an attempt on his life.

They're here! They're here! A whole swarm of moths!

Only fifteen minutes and thirty seconds until moonrise!

Princess Rayneshia has resided in Akiba for a while now, getting along with the people in town. One day, she receives a visit from her mother Sarariya and is told that she will be engaged soon to the head of a powerful noble family.

Touri of the Saiguu Family, Princess Rayneshia's husband-to-be, sends a messenger to let her know the preparations are in place for their marriage. Meanwhile, Eins declares that Honesty will secede from the Round Table Conference.

When Shiroe goes to see Eins to discuss the future of Akiba, he finds the head of the Saiguu Family was also waiting for him. They ask Shiroe to help them with the Akiba Government. The answer Shiroe reaches is…

The residents of Akiba are notified of the election. Both parties campaign to gain their support. Meanwhile, Rayneshia needs to face her mother to get permission in order to be part of the New Round Table Conference.

Election day has finally come. Standing in front of Adventurers and the People of the Land, both Eins and Rayneshia give sincere speeches. Votes are cast and starting to be counted. What will the result be?

Krusty has something to tell Shiroe. In his message, he recounts what happened to him after he disappeared, as well as his encounters with Enchantress Youren and the Ancient hero Elias Hackblade.

Krusty and Kanami's group face their enemies in Sirius Grotto. During the battle, the truth about Enchantress Youren comes to light. Will Krusty be able to overcome his curse?

At the Round Table Conference gathering, people notice that Rayneshia seems to be preoccupied by something. Meanwhile, on their way back from training, Toya and the others find Ancient sisters.

Minori finally gets to go shopping alone with Shiroe. While exploring the store, she learns a lot about items and raids. Meanwhile, Shiroe checks in with Isaac to see if he's noticed anything unusual.

One morning, the Adventurers wake up and realize that the Akiba they're currently in isn't the Akiba they know. With reduced levels, they start to feel helpless, but Shiroe notices there's still hope.

The young Adventurers challenge the raid. Without any adults' help, they must defeat the enemies and bring back normality to Akiba. Can they beat this raid by themselves?

The young Adventurers fell to despair by Ereinus. However, Akatsuki, Lelia, and Litka's fighting spirit reinvigorates the team’s morale. Under Minori's command, they stand against the Genius once again.