Lu Ying always wonders when this bad fate started.
A few years ago, he thought that it was probably the boy in the dark alley who said impatiently and coldly: "Don't meddle in his own business." Or maybe it was the early morning sun shining into the classroom, and the boy at the door smiled and showed a tiger tooth.
Only in the end did he understand the cause and effect. It was probably thousands of years ago when the scarred child hugged his hand in the snow and said in a very soft voice: "Teacher."