After Passing Through the Book, I Became the Villain and the Devil

She slipped into the male protagonist's true story written by her brother and became the demon king who would be cramped and skinned by the male protagonist in the future. She also beat the male protagonist to pieces at the beginning... What's even worse is that she also has a drag system that forces her to be a villain every day! The Supreme of the Demon Realm, his skills are off the charts, he kills decisively, and he despises the heroes. It's so exciting! Isn't it awe-inspiring for a group of little devils to shout and support? Wouldn't it be cool to have a giant python as a pet? Wouldn't it be nice to have an extremely beautiful nine-tailed fox as a protector? But she is a villain, and she has to look up to the halo of the cool male protagonist every day... "Demon Lord, it's not good, the beams have collapsed!" "Your Majesty, what's wrong, a fireball fell from the sky and destroyed your bedroom!" "Demon Lord, it's not good..." "Shut up!" The Demon Lord's blood tank is empty... The domineering, arrogant and evil devil VS the tsundere, sinister and sensitive cheating king It is also known as "After dressing up as a female villain, I relied on teasing the male protagonist to level up and continue my life", "Throughout the book, I farmed in the demon world", "I defeated the male protagonist by eating food", "The Demon Lord is a scapegoat". Welcome to the pit!