Yuuhi Hajime

Yuuhi was orginally a human girl who suffered from a terminal illness. After Lala's actions she became a Zombie through an infection from one of Zombina's teeth.

Personality
Yuuhi is a very kind girl who has a strong desire to make friends and have fun. Unfortunately she had trouble making friends because the long periods of time she spent in the hospital isolated her from large groups of children, and children who were in the hospital usually left after short amounts of time.

Her terminal illness also caused her to develop a case of death anxiety as she was very worried about what would happen to her soul after her death. After talking to Lala she was somewhat releaved of her concerns, but still accepted Lala's offer of help in order to avoid her death.

After becoming a Zombie, Yuuhi is very happy to not have to worry about her illness and that she can enjoy playing with the Neighborhood Kids. The fact that her status as a zombie means she is technically dead does not seem to bother her in the slightest.

Zoological Classification
Zombies (ゾンビ, Zonbi), also known as the Living Dead (リビングデッド, Ribingu Deddo), are humanoid beings that possess the notable feature of not only possessing no pulse, but are effectively immortal.

Zombies are really less a liminal race than a condition, as they are totally dead in the biological sense but still possess enough brain activity to continue function as though they were biologically alive. They are former humans brought back to life thanks to a special infectious disease.

Trivia

 * She is the first character in the series to be changed from a normal human into an extra-species