It's about a mother who used to be very violent and horrible, always hitting her children. Actually, she loves her children very much. But she went too far, sometimes she hurt her child with a knife or something, so that one day she let her child kill me. In fact, she loves her children anyway. As a result, that woman couldn't control her madness that day and wanted to kill her child (she never dared to go out at home). As a result, the child listened to his mother. Killed her mother.

And then he became one of those fucking ghosts. In fact, in the process of watching, he felt that his mother was still alive. Actually, she's dead. It's just a ghost attached to others. In this way, she continued to haunt and catch children at school.