The Death Probability is 100 Percent

'''Introduction to the Work: * Keywords: Fantasy, Western-style, System-based, First Love, One Night Stand, Fateful Love, Brainy Male, Capable Male, Straightforward Male, Scheming Male, Overpowered Male, Obsessive Male, Wounded Male, Pure-hearted Male, Charismatic Male, Brainy Female, Capable Female, Wounded Female, Royalty/Nobility, Good Triumphs Over Evil, Sweet Romance, Female Protagonist-centered, High Stakes "Shall I kiss your foot in a vow? I will protect you with my life." The man who flirted with me last night appeared in my dream under the name of Bastian, the Grand Duke—the nation's tyrant who declared he would make my youngest brother emperor and become the regent emperor himse...