After Being Reborn as a Villain, I Lit up the Technology Tree

In her previous life, Meili did all the stupid things for love, and it wasn't until she was sentenced to death that she regained her memory. She discovered that she was just the vicious female supporting character in Mary Sue's otome game, and the stepsister she had always been jealous of was the heroine. In this regard, Meili, who was a mathematician, physics and chemistry boss in her previous life, said: What is love? Isn't it delicious during the Industrial Revolution? So, back on the eve when the old Duke announced the distribution of his inheritance and the female partner was slapped in the face, Meili gave up her inheritance rights without hesitation and headed to the border territory with a small consolation payment. She planted rice on the barren land, poured steel into the dilapidated city walls, trained soldiers to build universities, and made the world's first missile... A few years later, when the border city of Liolet became the world's leading metropolis, and Merry was called "the greatest lord in history," "a genius in the world of physics," and "the hero who saved the nation," she still didn't realize that everyone was talking about her. * Just when everyone thought that they would not be surprised if something incredible happened to Meili, the Demon King, known as the most powerful demon king in thousands of years, kicked open the city gate, put his arm around her slim waist, and announced with a cold face: "Marry me and the entire devil world will be yours." "What if I say 'no'?" "... Please." ​ ### Food guide: 1. Western fantasy world, sword and magic, infrastructure construction, system flow, big golden fingers, no logic. 2.1V1, the male protagonist is a demon king, who looks like a human child. He recovers his true body and memory later. He does not fall in love before becoming an adult. When he is still young (!), The boy's heart and eyes are all about you. 3. Pseudoscience in the magical world, listen to the author's blind comparison, you are right. . Pre-collection 1: After being abandoned by a doggy man [Comprehensive] In order to survive, Kuroki Sakurazhi bound to the system and relied on lies to eat away at the "love" of others. However, due to being cursed, her "predecessors" eventually killed her for the sake of her best friend/Bai Yueguang/power/righteousness. But Sakurazhi didn't know that after she left the world, the binding curse also disappeared, and her predecessors' favorability and blackness levels reached 100... . After obtaining enough energy, Kuroki Sakurazhi decided to end another world and retire in seclusion. As soon as she opened her eyes, she found herself being held in the arms and pressed against the wall by her ex, who had a white-haired eye patch. System: This is "one" of your target targets this time. I deliberately lowered the difficulty and picked one that you have conquered before. I'm considerate of it. Sakurazhi: ... What the hell are you? Not only that, she found that those who claimed to be the King of Curses/One of the Upper Strings/Spider Half-demon/Judai Kirisama/Team Captain... Were also very similar to the dog men she had met before. Sakurazhi, who was surrounded by dog ​​men: (pupil earthquake)... Knock it on, system, did you hear it, I'm knocking it on! . Dog men all thought that Kuroki Sakurazhi loved them enough to die for him, but they didn't expect that they were just one of the fish in the fish pond. Kuroki Yingzhi: It's not easy, but it's okay. If you can deceive them once, you can get it a second time. Hey, it's just deception. . [Spinoff] Pre-collection 2: I turned them all green [Chainsaw Man] *Neptune After Guangxi's death, his soul signed a contract with the devil of cause and effect and fell into the reincarnation of cause and effect. Since she couldn't resist, she decided to simply enjoy the feeling of being alive - so she whistled loudly at the beauty she passed by. . A certain cursed king with four hands: I thought she loved me, but who knew she only loved the little devil I possessed. I have never seen a more ruthless and selfish woman than her. I wanted to kill her, but the strange thing is that I couldn't. A man with six eyes and white hair: I fell in love with a woman, and then she found out that she loved my best friend, and then I found out that she loved everyone, even women... A serious man with a knife: She is my light, my sun. I thought I would just protect her silently, but in the end I realized that what I wanted was far more than that. Everyone: Who do you love? Guangxi: You are all my wings. * Kishibe met the person he fell in love with at first sight during his first year in the team, and he said to her without hesitation, "Be my woman." As a result, he saw the other party making out with a woman in his arms. The boy was heartbroken, and Kishimoto turned around and left. . Later, on a night of heavy rain, Anbian was waiting at her door, with wet black hair sticking to the side of her face, pale lips, and paranoid and desperate eyes. "You can only have me." Mission: Don't be in love, work hard to get rich