Kubikiri Tokutei

Charles is an executioner who has killed more than 1,000 criminals so far.
After more than a thousand murders, he has acquired extraordinary physical and mental abilities.
The only person who saw through his abnormality was Vice Principal Harman, who welcomed him as a special student at the prestigious magic academy “Junferno Dart”.
　
Charles hides the fact that he is a special student and a former executioner, and survives the prestigious school with his executioner mentality and executioner physicality.