In contrast to the bright new year, the Yamabuki family was surrounded by disturbing air. My parents who have been unhappy for a long time are falling into a state of divorce. The three sisters of the Yamabuki family, Yukiko, Tsukiko, Hanako are the karaoke boxes who went to distraction, meet one of the twelve chimpanzee who is responsible for the age of roots and the cockatoo. The god of the zodiac has a role of protecting the peace and happiness of each year, and this year of the Rooster year, it is the turn of the roaster. Nevertheless, the person himself works that he lost the power to fulfill his role in the fun of playing with the karaoke at the New Year's holiday. And the three sisters were tailor - made to the three - sister Shushtrian by the owner - sama ally of the youkai with exile of justice, and in exchange for the fulfillment of husband and wife, the mission of protecting the peace of the Rooster year was pressed. In this way, the secret battle of the three sisters began to protect peace of the family and the peace of the world.