It is revealed that Ruriha and Tsubaki have Death Blood as well and that Tsubaki is Ruhiha and Hagane's mother. Hagane and Ruriha run away from Tsubaki. They face difficulties of interacting with other people, while Tsubaki looks for them.
It becomes apparent that Ruriha and Tsubaki also possess Death Blood, and that Tsubaki is actually Ruhiha and Hagane's mother. As a result, Hagane and Ruriha flee from Tsubaki. They struggle to connect with others, while Tsubaki searches for them.