I Use American Comics to Slay Demons

Lingkong was once the owner of an internationally renowned security company. During an important escort mission, he was betrayed by his own men, causing the mission to fail and the entire family to be ruined. But he did not give up, relying on his superb skills to try to make a comeback, until one day, he took on a very dangerous mission and played himself to death... "Didi, the system is successfully bound!" When I opened my eyes again, I was in a classroom, talking about how to get rid of demons... "Teacher, look at me, am I a monster?"