Characters:

Kanoe Yuuko - a ghost roaming around the school campus. She is a teenage girl that was sacrificed. She died and forget her painful and lonely experiences. Although she was dead, she can still be seen by the people who  sacrifieced her. Whatever it takes, she still can't rest in peace until she met the young freshman named Teiichi Niiya. Her life (I mean death) is full of laughter since then.

Teiichi Niiya - a young freshman who changed the whole her. He can see her and talk to her straightly. Even if he was always like a stupid in front of Yuuko, he loves her very well. He learned to love him a long time ago. Unbelievable, right?