Is the Senior Sister Not Guilty of Slander? When I Meet the Devil, the King Sends Her to Death

Qin Feng travels through the era of national knights. On the surface, he is a knight rated as a miscellaneous fish. In fact, he has a demon king system. At the beginning, he chooses to meet the demon king, and his killing becomes stronger. He has always wanted to live in peace as a human being. I never thought that my extremely talented sister would be bullied by her senior classmates. Not only did she have broken ribs and bruises all over her body, she was also slandered as a thief and publicly exposed online! The teacher went to federal court. They disdained and ridiculed: "We are all S-class genius knights, protected by federal protection laws. Let's play music and dance, Jimei~" After the trial results come out. Qin Feng was angry. The blood feud between their parents is still unsolved, their sister was humiliated, but they are not guilty? Not only that, but he was also framed for defrauding the Knights of the Brave out of a huge sum of 500,000, and was sentenced to life in prison? "Blind tolerance and patience will only result in arrogance to push the envelope!" "If I become a demon, I will be more cruel than any of you!" "And now, I, Qin Feng, have a showdown... I am the King of Demonic Time!!!"