Here's the yaoi/shounen-ai manga from ADV films...
Peacemaker Kurogane; Nanane Chrono
Tetsunosuke Ichimura has finally joined the ranks of the Shinsengumi, feudal Kyoto’s samurai police. As a page for Vice-Commander Hijikata, he has been made privy to both Japan’s highest ranking officials and their secrets! With this responsibility comes the all important duty of protection, and when a certain enemy threatens the city, the Shinsengumi-and Tetsunosuke-draw their swords, swiftly serving up justice as the dueling protectors of the embattled imperial capital.
Publishing Company: ADV Films
Rating:
Genre: Historical, Humor, Drama
Status: 3 volumes (Project stopped)
~~~~~~Prequel~~~~~~~
Shinsengumi Imon Peacemaker; Nanane Chrono
***Not licenensed in North America***
Is the prequel to PMK... wasn't brought over to North America, but the anime that is focused on the series is based on SIP mostly as well as few PMK scenes.
PMK is actually the sequel to SIP and if you read the manga you will find out PMK happens after the anime ends. (Is a little confusing but you'll understand once you look into it) ^^