Ako Hatoda

A young Magical Girl, she was recently chosen and became the 16th Magical Girl of N-City. She wears an Alice in Wonderland-style dress, draped in black as her Magical Girl Outfit.

Her ability lets her regenerate any damage taken, allowing her to survive even beheading or dismemberment.

When her identity as a magical girl was found. She picks up what she thought was her real bunny doll, turning out that it was Minael disguised as it. They use that to find her information, she is then followed, and killed by Swim Swim. She is the tenth magical girl to die, killed in her untransformed state by Swim Swim.
(Source: Magical Girl Raising Project Wiki)