Alternative
Best Teacher Baek / 일타강사 백사부 / Number One Star Instructor Master Baek / One Hit Teacher, Master Baek / Master Baek, the One Hit Teacher / Лучший наставник
After his qi center is destroyed, a martial arts instructor of the Blood Demon Cult is assigned to learn and research the martial arts of four captured masters. However, when the Cult betrays him and decides to kill him, he fights back and everyone in the Cult dies, including himself.