Yumiko Shiori.

Kakuzu had a son to a woman he had tried to kill. His son had visions - he had seen the Akatsuki die. Kakuzu had taken them both to the Akatsuki, hoping to change their future. But what happens when the woman he tried to kill, the woman he loves, will die giving birth to a child from another man? Will he stop it? Or will he let her die so he can have Kizune (his child) all to himself, and to the Akatsuki? Will they all live, or will they die?

Link to Quotev Story; https://www.quotev.com/story/10168300/Stitch-Me-Up/1