Yukako Iride

Akatsuki's mother is the biological mother of Akatsuki Iride(who died from multiple medical issues) and the adoptive mother of Akira (who is a replacement of the original Akatsuki) who then has a name change to Akatsuki.

Appearance
She has short neck length hair, long-sleeved shirt, normal pair of pants and sometimes wears an apron on top.

Personality
On the outside, she is a kind, normal mother and cares for her family deeply, but then after the death of her son, she adopts Akira (Akatsuki), but then her husband dies due to a laboratory accident and she loses her sanity, she becomes broken and pretends Akatsuki's a handmade doll.

History
Yukako was first introduced when karin's brother comes and meets Akatsuki's Family after his disappearance. Yukako meets them at the door and Shinya describes an 'Uneasy Feeling' and turns out that feeling was because she was broken when she showed them the doll.

She was seen in Ichiya's flashbacks saying that he can only be normal around his broken sister, showing that she cares for him a lot.

When Ichiya returns to the house, Yukako says that she's okay, since he had to take care of her all these years, so she's okay.