Hu Jun was a 56-year-old teacher who took part in high school education for more than 30 years. He had a typical square face, wore old-fashioned spectacles, and the same grey shirt that he had worn for over 20 years. The way he walked and taught were scrupulous, giving people the impression that he was old-fashioned, serious, and stern.
Whenever the students he taught saw him, the smiles on their face would instantly vanish. They corrected their postures and bow their heads down. Even their breathing would become lighter. When he entered a classroom, only one second was needed for the whole class to become completely silent. Even the sound of a needle falling onto the ground could be heard. The sound of his footsteps was just like stepping on the hearts of each student. An aura that made students tremble in fear emanated from his body.