Kijin Shinsen

is a Japanese light novel series written by Makoto Izumi, with illustrations by Yasuda Suzuhito. The series began publication on July 10, 2003 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
The time is the beginning of the Meiji era. When the Boshin War was over and the world was settled down. Former Shinsengumi second captain Shinpachi Nagakura, who barely survived the Boshin War, infiltrated the nostalgic Edo. Speaking of Shinsengumi, the existence that is regarded as an enemy of the eyes by the new government. In such a dangerous situation, Tomomi Iwakura, who stands at the center of the new government, was asked to search for the leader of the Shinsengumi director, Isami Kondo, in exchange for the exemption from charges. For unknown reasons, Shinpachi headed to Kyoto, where various memories remain, along with Shinpachi Matsumae and Kagari, who have the foresight of "Neuporoikushi." However, Hijikata, Harada, and Okita, who should have died, are there- !?