Teacher of the Catastrophic Villains Manhwa

Mystic World–a virtual reality RPG game. Beopgyu Lee, the developer of Mystic World, wakes up to find himself in a strange lab which he recognizes as one of the settings from his game. To make matters worse, he is in the body of Han Lee, a notorious villain character. Find out how Beopgyu survives as Han in the game he created–not as the main character but as the master of villains!
Master of Villains
Teacher of the End-Of-The-World Villains
The Teacher of Catastrophic Villains
The Teacher of Perishable Villains
멸망급 빌런들의 선생님