Ai Kunugi

Ai Kunugi sought out Misaki Saikis help some time after her sister had committed suicide following the accidental murder of her infant niece. The babys death was blamed on the mother but Ai knew it was her sisters boyfriend a yakuza boss named Kago who was the one responsible. However after the incident Ai soon found out that like Misaki she too had the ability to see and communicate with the dead. A very brave girl Ai often looks up to Misaki hoping to be as strong as her. Misaki on the other hand would rather have the girl ignore the many deceased spirits that Ai often encounters. Ai is also a classmate of Mitsuru Fujiwara the young boy who is stalking Misaki. Source: Absolute Anime