This is the event that I experienced when I was 8 years old, that is, the third grade of elementary school.
Perhaps I guess it was lunch break after school, but my classroom is on the second floor.
When I tried to go up the stairs, there was a voice calling for my homeroom teacher.
It is from the top.
As soon as you go up to the landing, turning around as "teacher?",
Nobody!
While trembling half, there was a teacher when I entered the classroom.
I asked, "Your teacher, did you call me?" The teacher said, "I do not call you."
It completely trembled.
When I talked to a friend, I was told "It is haunted."
At that time the ghost stories were very popular at school, and the only topic with friends was the ghost topic.
I do not know even whether it is a teacher 's clearer, auditory hallucination, or truly a ghost or a youkai' s work.