System, I Am Invincible in This World

(No cp, invincible, fast upgrade, decisive killing, pretending to be a pig and eating the tiger) In the last life, Song Yan embarked on the road to ascension in order to break the barriers in the world of cultivation. Unexpectedly, he ended up in failure. After his body finally died, his soul traveled to the body of a young man with the same name in the lower realm. It took him ten years to survive the mortal tribulation. Now that ten years have passed, I am in a perfect state of mind, and there is only one opportunity left to ascend again. Just when he was about to say goodbye to his family, his fiancée came to exchange marriage. It would be better to replace him with the adopted son who took over his identity ten years ago. Not only that, his parents and family also asked him to apologize to his fiancée. At this time, a system claiming to be intelligent appeared and was rewarded with a soul flag weapon. At this point, he holds the Hundred Ghost Flag in his hand, and all those who offend him and threaten him are sent into the soul flag. His way of survival is to destroy the whole family if anyone dares to offend him.