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.

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.

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.

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.

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

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.

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!

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"...

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...

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

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.

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...

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.

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.

Only fifteen minutes and thirty seconds until moonrise!

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

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.

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

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.

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.