Mori no Ongakuka Cranberry

A recluse living within the ruins in the outskirts of N-City. Her outfit is decorated with wildflowers and leaves, and her appearance is that of an Elf. Her ability lets her control sound waves.

[Spoiler] It is revealed that Cranberry was once a part of a previous magical girl selection exam, relishing in the thought of killing others and becoming Fav's master, changing the rules of the exam into lethal ones.

She is killed by Tama when Cranberry is distracted at finding out that Swim Swim is only a child. She is warped by Tama's ability, causing her upper body to explode. She is the twelfth magical girl to die after being killed by Tama. [/Spoiler]

(Source: Magical Girl Raising Project Wiki)