Sea City's winter fog was thick and oppressive.
Beyond several meters, visibility was reduced to layers of white mist.
In the field of the No. 9 Elementary School, children were trembling in fear. Their crying and shouting could be heard through the fog like shrieks of demons.
There was a pool of blood on the path between the teaching building and the main entrance.
Only ten minutes ago, a man in his forties armed with a sharp blade had appeared like an evil spirit just as students finished their classes.
Their happy chatter dissipated instantly, leaving only horrifying reality.
A class teacher, Yang Lili, had been 24 this year. She had just graduated from a teacher's university with a heart full of aspirations and passion.
She had the habit of seeing the children off at the main gate. The smiles on their faces kept her dreams happy and positive.
It was foggy as usual, but the man's sudden presence had broken the normal routine.
