Kenji Darvish

Members of SWORD win against Wangan Rengogun, which is led by Kohaku. The city becomes peaceful again. Nevertheless, the most brutal gangs, Doubt and Prison Gang, appear. They try to dominate the area controlled by SWORD.

In the district of Monzen-Nakacho of Koutou in Tokyo, three sisters live in one house. The Watanuki sisters had a life of hardships, a life without a mother, who died in their early childhood and now without a father, who died just a year ago. Now alone and becoming the inheritors of the Watanuki house, the sisters have to endure several situations in their everyday lives; whether those are happy, sad or special, they will test the sisters' bonds as a family.