During the day, he is the most inaccessible physical education teacher in Jiangcheng No. 1 Middle School. He is taciturn and neat in his actions.
Students are afraid of him, colleagues respect him - but no one knows that this "Teacher Lu" is executing a death list that no one dares to pick up every night.
Kill people, clean guns, clear the place, and go to class.
He cut his life to the extreme and locked himself in complete darkness.
Until the trainee teacher who was always late, laughed a lot, and was in a hurry broke in.
In a chance encounter, Lin Yun discovered the side of him that should never be seen.
Lu Yan could have killed someone and silenced him. But for the first time... I let someone go.
From that day on, the two worlds began to intertwine:
One person is close to the truth, and the other person hides in the abyss.
But some people are willing to walk against the light, and some people will eventually break their blades to protect them.
"Who are you anyway?"
"It's better you never know."
Concept: Outside of the gloomy reality and rules, there are people who use silence and sharp blades to guard others' glimmer of light.