is a Japanese light novel written by Yuba Isukari and illustrated by Tatsuyuki Tanaka. It was initially serialized as a web novel published on Kadokawa Corporation's Kakuyomu website between January 2016 and March 2017. A single volume was published under Fujimi Shobo's Kadokawa Books imprint in December 2016. A sequel titled Yokohama Station SF National was published in August 2017. A manga adaptation illustrated by Gonbe Shinkawa was serialized on Kadokawa Shoten's Young Ace Up website between December 2016 and October 2018.
Approximately 200 years have passed since the Winter War, and most of Honshu has been covered by the proliferation of Yokohama Stations. Hiroto Mishima, who was born and raised outside of Yokohama Station, obtains a "18 Ticket" from a man associated with the Kiseru Alliance, allowing him to enter Yokohama Station for five days, and heads inside the station.
As he continues his journey, meeting spies sent from Hokkaido and the leader of the Kiseru Alliance, Hiroto learns the truth about the origins of Yokohama Station and makes the decision to put an end to it. By the time Hiroto returns to his hometown, where he learned agriculture in preparation for a life without Yokohama Station, a year has passed since he set out on his journey.
Written by Yuba Isukari, Yokahama Station SF was initially serialized on Kadokawa Corporation's Kakuyomu website from January 11, 2016, to March 31, 2017. A single volume with illustrations by Tatsuyuki Tanaka was released under Fujimi Shobo's Kadokawa Books light novel imprint on December 24, 2016. A sequel light novel titled Yokohama Station SF National was released on August 10, 2017.
The novels are licensed in English by Yen Press.
A manga adaptation illustrated by Gonbe Shinkawa was serialized on Kadokawa Shoten's Young Ace Up website from December 27, 2016, to October 25, 2018. The manga's chapters were collected into three tankà Âbon volumes released from August 10, 2017, to November 2, 2018.
The manga adaptation is also licensed by Yen Press.
The series won the Grand Prize in the Science Fiction category at the 1st Kakuyomu Web Novel Contest in 2016. The first novel was ranked eighth in the tankà Âbon category in the 2018 edition of Takarajimasha's Kono Light Novel ga Sugoi! guidebook.