Ai Mizuno

Mizuno Ai (水野 愛) was a popular idol in the early 2000s from the idol group called Iron Frill.

She is titled as the Legendary Heisei Idol (伝説の平成アイドル Densetsu no Heisei aidoru)

Official Bio
The black short-haired zombie with flower ornaments. The immovable leader of Idol Frill, the idol unit that was at the top during the 21st-century idol war.

While she's good at singing, she is confident in her ability to dance.

She is determined and is not afraid to speak her mind out. Extremely skeptical about Kotaro's schemes.

On a side note, the flowers on her head increased when she's in idol form

Appearance
Ai has short, dark, slate blue hair with two yellow flower clips. Her bangs are bunched together, and she has light red eyes. Like the other zombies, her skin is a greyish-blue.

Her casual outfit consists of an Idol-like school outfit: a navy-blue jacket over a pale yellow top with a blue plaid skirt and bow. She also wears dark grey socks and light brown school-shoes. As a zombie Idol, Ai has a light sky-blue shirt with "3" written on it. She also supports a turquoise skirt.

Episode 1
At the beginning of the episode, Ai appears on Sakura's TV screen with her idol group, Iron Frill.

She later appears as a zombie laying in the room that Sakura escapes to while running away from Tae. Zombie Ai along with the other girls tries to attack Sakura, only for her to stab Ai in the head with a fire iron.

After their successful death metal performance in a death metal festival, all of the zombie girls regain their senses. She wakes up along with Junko and Lily but was frightened upon seeing Tae.

Trivia

 * Ai was only 16 years old at the time of her death.