The Two of Us Shall Waltz

"The Two of Us Shall Waltz" is the twenty-first episode of the Log Horizon anime. It aired on February 22, 2014. Unlike the other episode titles, it does not coincide with its corresponding light novel chapter because most of the episode was only briefly mentioned in the original source.

Synopsis
The episode opens with an overhead view of the Ancient Palace of Eternal Ice at night. Inside, Shiroe is seated, working, at one end of a long table. Akatsuki, kneeling on the table at the other end, asked if he would attend the party. He responds that he doesn't like fancy events and would let Krusty handle it.

At the party, Krusty is in the center of a small group of Landers, being praised for the victory over Goblin forces. He responds that is was team work between the People of the Land and the adventures that brought success. Princess Rayneshia watches this exchange with two ladies, becoming more and more agitated with each compliment given to him. Elsewhere at the party, members of the Crescent Moon Alliance are enjoying the food and talking to Nyanta. Several Lander children run by, looking for Akatsuki, the "Queen of Hide and Seek". Shoryuu mentions that it is to early for a victory celebration, but Nyanta explains the politics of the situation. Maryelle has just given Isuzu permission to leave the Crescent Moon Alliance so she can join Log Horizon. While Isuzu thanks Maryelle, Rudy ruins the moment with his nonsense. Henrietta is on the hunt for the no-show Shiroe after telling Nyanta and Naotsugu that it wasn't okay for him to be missing. Hearing Henrietta calling for him, Shiroe makes a hasty retreat into the night, leaving Akatsuki behind to fall into Henrietta's amorous clutches. Outside, Shiroe receives a call, from Ooshima of the Little Birdies, informing him of the Demon Festival of Suzuka Gate in the west. On his way to consult with ReGan, Shiroe hears a woman telling a story to a group of children. He is shocked that is a retelling of how he transformed Rudy from a Lander to Adventurer to save his life, since it was supposed to be a secret. Finishing her story with a promise of more later, the mystery woman vanishes into the shadow of a archway.

Shireo is surprised when ReGan congratulates him for creating a new world class magic. Regan explains he felt the event when it happened. ReGen adds he has also fell the same power from the west. They also recount the situation in Susukino. It has yet to recover from being taken over by the Brigandia guild. In the months since Shiroe lead the rescue of Serara several armies have removed those who wished to leave Susukino. Still about 200 Adventures stayed and lord over the landers there.

Back at the party a trio of Adventurers are standing on the main staircase telling the crowd about the Goblin General battle. Krusty and Naotsugu are commenting the trio don't know about the memory loss of revival. As far as they know only Key personnel on the Round Table Counsel have been told about the memory loss.