Honto ni Atta! Reibai-sensei  

honto ni atta, Really Existed! Spirit Medium Teacher, reibai, YuruAni? Honto ni Atta! Reibai-sensei, ほんとにあった! 霊媒先生, Yuruani, Honto ni Atta! Reibai Sensei

The story revolves around Kibayashi, a teacher whose hobby is speaking with the dead and whose special talent is exorcism. She seems to know everything about the other world, yet nothing about our own.(Source: AniDB)