Kurogane Yaiba is a boy who doesn't want to become what any regular kid would: A samurai. That's why he undergoes a hard training with his father, knowing only the forest as his world. Then, one day, he is sent to Japan, where he has to deal with a whole new civilized reality, meeting the Mine family, the evil Onimaru and even the legendary Musashi, having lots of dangerous adventures, becoming stronger everyday. (Source: ANN, edited)

The Taishou era didn't end in 15 years, but went on for another 25. In order to protect her waning family, a girl resolves to marry a man she doesn't even know the name of. However, just before the marriage was to take place, the girl's younger brother mysteriously committed suicide by self-immolation and was found holding an old book in his hands. Appearing before the bewildered young girl was the "Imperial Library Intelligence Asset Management Bureau," more commonly referred to as "Fukurou." According to these men, there exists "Maremono," which are books that greatly affect their readers. On top of that, ever since the incident involving the girl's younger brother, she unwittingly gains the ability to see "Auras" (the sentiments of the Maremono which manifest as bright lights and are usually invisible to humans). It was as though fate were trying to drag the young girl in its flames. And then, even though apprehensive, the girl chooses to venture outside her bird cage. Jealousy, hatred, scorn, compassion, and love. What awaited the girl was the darkness of betrayal that had already begun to bewitchingly inlay the imperial capital. Toyed by and swayed within that darkness, will the young girl finally reach the truth after her struggles, or...? (Source: MAL News)

In the blink of an eye, thirty thousand bewildered Japanese gamers are whisked from their everyday lives into the world of the popular MMORPG, Elder Tale, after the game's latest update—unable to log out. Among them is the socially awkward college student Shiroe, whose confusion and shock lasts only a moment as, a veteran of the game, he immediately sets out to explore the limits of his new reality. Shiroe must learn to live in this new world, leading others and negotiating with the NPC "natives" in order to bring stability to the virtual city of Akihabara. He is joined by his unfortunate friend Naotsugu, having logged in for the first time in years only to find himself trapped, and Akatsuki, a petite but fierce assassin who labels Shiroe as her master. A tale of fantasy, adventure, and politics, Log Horizon explores the elements of gaming through the eyes of a master strategist who attempts to make the best of a puzzling situation. [Written by MAL Rewrite]

After being trapped in the world of Elder Tale for six months, Shiroe and the other Adventurers have begun to get the hang of things in their new environment. The Adventurers are starting to gain the trust of the People of the Land, and Akiba has flourished thanks to the law and order established by Shiroe's Round Table Alliance, regaining its everyday liveliness. Despite this success, however, the Alliance faces a new crisis: they are running out of funds to govern Akiba, and spies from the Minami district have infiltrated the city. As formidable forces rise in other districts, there is also a need to discover more about the vast new world they are trapped in—leading Shiroe to decide that the time has come to venture outside the city. Accompanied by his friend Naotsugu and the Sage of Mirror Lake Regan, the calculative Shiroe makes his move, hoping to unravel new possibilities and eventually find a way home. [Written by MAL Rewrite]