Comprehensive Comics: I Am Really Not a Big Devil

Su En was reincarnated into the world of demon high school and became an out-of-program demon. Activate the Demon King system at the moment of life and death. With the help of the system, constantly defeat the enemies in front of you. Many years later, he discovered that there was no one left in front of him who could compete with him! This is the story of a soul from another world growing into a demon king step by step in the world of gods and demons. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.