A Salaryman in Hokkaido heads to Tokyo for his daughters wedding, but the fun is just beginning,,,

The year 1864: The Shinsengumi, the shogun’s armed force in Kyoto ripped the city apart, with blades in hand, searching for pockets of resistance, slaughtering the samurai who sought to bring down the shogunate and restore Japan’s emperor to power. By chance, Murao Mayumi and his sister Shiho, meet samurai Kurata. Murao, seeking his fortune with his sword-arm, will join Shinsengumi, never suspecting his friend Kurata is secretly Kurama Tengu, who hides his face in a black hood, and who will tear a bloody swath through Shinsengumi’s massed blades, to aid the samurai who had taken up the emperor’s cause. Will friend kill friend in a time of war?

The story revolves around a hardcore Onyanko Club fanatic who decides he wants to kill the girls to prevent the young, cute idols from getting old and married - in a sense, to preserve their youth for eternity.

Rica and Kengo have been living together for the past four years. It's been a very happy time for Rica; the only dark spot being an accident she caused during a shoot for a commercial in which Kengo's good friend, Shibata, nearly lost his life. The memory of this event weighs heavily on Rica's conscience. One night Kengo tells Rica that he has fallen in love with a charming but inscrutable woman named Hanako.