One Life to Clear the Twelve Kizuki on the Hardest Difficulty

The Useless Husbands: You're a rich heiress, and even the strongest are pretty boys living off your money. You're facing the classic horror-game opening: before you've even figured out what's going on, a group of ghosts are tailing you and about to attack you at point-blank range. Clearly, you're just cannon fodder. You don't want to die. Without hesitation, you drag the man who clearly looks like the team's strongest fighter into the mess with you. Good news: It worked. Bad news: He's a ghost too. Very good news: At least he's not Doma. Very bad news: You don't have a language pack. Very, very good news: At least he can understand a little. [How do you survive in the hands of one of the Demon King's most trusted Upper Ranks?] You think it over for one second, then decisively surrender! Even if you can't speak Japanese, you can still bounce around, gesture wildly, and sell him out on the location of the blue spider lily! Cling to him for dear life! As long as you survive, betraying humanity is a tiny matter, as easy as breathing~ You successfully cleared the disastrous opening. You successfully entered the second stage: everyday romance. You successfully entered the third stage: The Ruler Steals His Minister's Wife. You successfully entered the fourth stage: a sea of love and hate. You successfully entered the fifth stage: all is lost. Everyone is dead, dead, dead. You're still alive, but your heart is dead, too. Nothing in this world can make you laugh from the bottom of your heart anymore. Until... The One-Life Speedrun System came online. Congratulations on beta-testing a one-life speedrun of Demon Slayer. Along with sending you home, it gives you a clear reward: five million. You: Heehee. Warnings: 1. The heroine will use any means necessary and is imperfect in every way. 2. The main plot follows Demon Slayer. Due to conflicts in the story, there will be a debate about "To be, or not to be" with the Demon Slayer Corps. They simply have different viewpoints. The heroine greatly respects the Corps' courage and conviction in fighting demons. 3. The Inuyasha chapter in Love and Miko has a fourth-dimensional disaster mentality. The NPCs treat her like a Japanese person for their own ends, while she treats the NPCs like monsters to grind. Kikyo haters, stay out. Characters who wronged Kikyo won't get a happy ending. If you refuse to stay away, your favorite will suffer worse each time. 4. The heroine's fighting ability will not improve because she doesn't want to endure any hardship. She can only cry for help, happily accepting the assets of Heian Tragedy, Taisho Tragedy, and Two-Faced Tragedy. She becomes a super-rich heiress worth over ten billion and keeps a group of the strongest men to serve her. (The cover was commissioned from XHS San Sui Nai Nai Ji Shi Bu. The Kokushibo art was commissioned from Si Fen Zhi Yi Kai Shui Jia Bing. The Kikyo duo illustration came from E Meng Meng Mo Le Zuo Pin. Thank you for your love~) Theme: Look forward to a brighter future