Mother of Utsutsu and Yume.
~!Shortly after giving birth to Yume she attempts to kill her baby, but is unsuccessful because Yume is infected with Pupa.!~

The "life-and-death sibling" story follows Utsutsu and Yume Hasegawa, a boy and his little sister who find themselves all alone. One day, Yume sees a mysterious red butterfly and her body undergoes a strange metamorphosis—into a creature that eats humans. Utsutsu struggles to find a way to restore his sister.
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(Source: Anime News Network)

[Profile](https://osawa-inc.co.jp/women/notomamiko/)

A Japanese actress, voice actress, and singer. She is married and has one kid.

**Non-anime roles:**
- Shinano - Azur Lane (VG)
- Emma - Goddess of Victory: Nikke (VG)
- Skirk - Genshin Impact (VG)
- Durandal - Honkai Impact 3rd (VG)
- Jun Kazama - Tekken series (VG)
- Mother - Avataro Sentai Donbrothers (Super Sentai) 
- Rella Melancoryphus Cygnus - Metaphor: ReFantazio (VG)

The "life-and-death sibling" story follows Utsutsu and Yume Hasegawa, a boy and his little sister who find themselves all alone. One day, Yume sees a mysterious red butterfly and her body undergoes a strange metamorphosis&mdash;into a creature that eats humans. Utsutsu struggles to find a way to restore his sister.
<br><br>
(Source: Anime News Network)

Sachiko Hasegawa