Villain of the Tenth Generation: the Heroine Who Learned the Truth Went Crazy

He has been reincarnated for nine lives, and he has been a villain in every life. No matter how hard he tried, Jiu'er, who has been with him all the time, cut off his nine tails in nine lives, a total of eighty-one tails, and protected him for nine lives, just because he saved her life. Knowing that he could not get rid of the title of villain, he started his tenth life with the heart of revenge for Jiuer. He wanted to be a real villain, and he was bound to the villain system, which doubled his confidence. But will things really go as he wants? Why does the second junior sister make things difficult for the protagonist? Shouldn't we help each other? Why do you, Third Junior Brother, fight for me? Am I not his wife-killing enemy? Why does Fourth Junior Sister no longer look at me with such disgust? Why did Seventh Junior Sister become such a lady? Fifth Junior Sister... Sixth Junior Brother... Why has even the master changed? What does this make me do?