I Was Stabbed in the Back by the System and Became a Demon Boss

[System + Cultivation + Ease. The protagonist is not brainless, and the villain is not clever. Fellow Taoists, you can taste it slowly. What I find strange in the front is all foreshadowing in the back. If you can't fill the hole, you can kill me! ] When he was eight years old, Chen Yang was beaten to a black and blue face by the village head boy who was 1.6 Meters tall but still insisted on eating candy. Chen Yang started his journey of becoming a bully. [Bite! The mission is completed, and you will be rewarded with bone-cutting and marrow-cleansing! ] Chen Yang, who originally thought it was over, discovered that there was a reward for his losing streak! [It is detected that the number of losing streaks is 11, additional reward: Daoyuanjing! ] At this moment, Chen Yang was floating!