Log Horizon is a Japanese light novel series written by Mamare Touno and illustrated by Kazuhiro Hara.
It initially appeared in installments on the user-generated content site Shōsetsuka ni Narō ("So You Want to be a Novelist") starting on April 13, 2010, and subsequently published in book form by Enterbrain since March 2011.
[2] It began serialization on January 27, 2012, and is published by ASCII Media Works in the Dengeki Daioh magazine.
[4] The third adaptation is illustrated by Koyuki and titled, Log Horizon: The West Wind Brigade.
[5] It began serialization on July 9, 2012, ended on March 9, 2018, and was published by Fujimi Shobo in the Age Premium magazine.