My Junior Sister Insists on Falling in Love with the Demon Lord

[The female protagonist who looks crazy but is really calm x the male protagonist who looks calm but is really crazy] The genius sword cultivator brother fell from the altar and spent many years in isolation, with only his junior sister Song Lingdong to protect him day by day. In order not to injure his junior sister, he could only push her away cruelly. Knowing that there is a wall between them, the junior sister has never left, but she still pretends not to know. Until one day, Xie Shilan felt Song Lingdong's dependence and care, understood the great way, and advanced to the next level. As a result, his junior sister disappeared? Junior sister is visiting a brothel in the human world? ? There was something in the junior sister's consciousness that said: She must fall in love with the Demon Lord? ? ? — — Song Lingdong was the iceberg heroine of a sadomasochistic novel about immortals and demons. She was supposed to have a love-hate relationship with the demon that would move the world, and finally suffered a glorious martyrdom. Because readers were dissatisfied with the ending, the system decided to change her story into a sweet pet story. However... Who will tell it why this iceberg heroine looks scarier than the Demon King! Song Lingdong's gloomy face appeared behind the Demon Lord: "Sadism? Sweet pet? Ha." Then he struck the Demon Lord with a sword. The system cried bitterly: "Why did it become a demon-killing script? No, absolutely not. This world really needs the Demon Lord. You are destined to be with the Demon Lord..." Senior brother Xie Shilan, who had been silent for a long time, suddenly spoke: "It's okay, junior sister, I can become a demon." -Xie Shilan's life of raising a daughter, junior sister, and wife- — — — Advance collection of "The World-Destroying Villain Pretends to Be My Mother", please collect it — — — After Song Jinhe passed through the book, he has been living a happy life in the human world with no worries about food and clothing. One day, her mother suddenly told her: 1: She is not a mortal, she is the daughter of Chang Yanxian Zun of the cultivation world. She faked her death and lived in the human world a few years ago. 2: Her father has been married for the second time and has a new daughter, who has taken over her identity. If she doesn't go back, even her fiancé will have to let him go. 3: "She" is not her mother, but was entrusted by her mother to protect her during her lifetime. If she wants, she can call "her" "Master". Then she saw that her young and beautiful mother-in-law had transformed into a man with an immortal demeanor and a cold demeanor in front of her. "Master?!" Song Jinhe exclaimed. The Immortal Lord in front of him looked as usual and responded calmly: "Yes." Song Jinhe closed his eyes and fainted. When she woke up, her mother... No, it should be said that her master had already formulated a complete revenge plan for her to "take back everything". Punch the scumbag father, kick the stepmother, suppress the stepsister, and take back the fiancé... Song Jinhe recalled the contents of the original book: Is this a scene where the villain of the original book uses an innocent supporting actress (herself) to beat up the protagonist group? ! But the mother-in-law (crossed out) master's gaze was too gentle, and she couldn't refuse. However, the plan was only halfway through when Su Fuwei changed his mind and said: "This man is not good, so let's throw him away together." After a pause, seeing Song Jinhesheng's helpless expression, he said gently: "Don't be sad, I'll choose a better one for you." But, who else in this world can treat you better than "mother"? (Ps male protagonist: emotionally stable - gentle boss - true - male mother) Mission: Don't be defined by fate, insist on being yourself