The beginning of Hakuouki Series, "Hakuoki Shinkai: Reimeiroku" originally released in 2010 on the PlayStation 2 and the PlayStation Portable. It details the Shinsengumi’s creation prior to the events of the original Hakuouki. The story follows Ryuunosuke Ibuki, who lives in the Shinsengumi headquarters after Kamo Serizawa picks him up off the streets.
entales the story Ryunosuke Ibuki, a boy who is a son of a samurai, yet hates the samurai. He was picked up by Roshigumi (later Shinsengumi) Head Commander Serizawa Kamo, after he was robbed and left to die on his way to Kyoto. After being rescued, he was forced to become Serizawa's dog & thus, Ryunosuke's Adventure with the Shinsengumi Begins.