A dutiful pureblood demon noble, a stubborn assassin, and a crossdressing soldier become entangled in the lives of the Shinsengumi. In the process, these three girls find themselves more deeply involved with certain members than they bargained for. OCxKazama, OCxHijikata, OCxOkita.

Composed yet worrisome cat demon Flein is invited to join the Dark Tournament, starting the adventure of a lifetime. Gathering a fighting team consisting of a boisterous water demon, a bashful wolf demon, and a complete bimbo, this unlikely group sets out to win it all- and forms a spontaneous alliance with Team Urameshi in the process. OCxHiei.