The State Matched Me with My Mortal Enemy

-- Beep beep beep, are you there? Are you there? -- If you have something to say, just say it. Don't ask if I'm here. -- Hehehe, I heard your fiancé has been decided! -- ... -- Hehehe, I heard it's me. -- ... -- Waaaah, you sound so reluctant. -- Get lost!!!!!!!!!!!!!!!! A coworker who had submitted a partner-matching application on the same day as her came over, beaming. "My fiancé seems pretty decent. I think we can make it through the six-month adjustment period. What about yours?" Meng Xi'an turned her gaze to the man across from her, sitting with one leg crossed over the other and happily slurping bubble tea. * There was a pair of sworn enemies at one workplace who seriously disrupted the office atmosphere. One was called Meng Xi'an, and the other Chen Tang. At this point, fate had clearly played a cruel trick on them. The two unlucky souls sat facing each other. They had countless disagreements, but one thing in common. Meng Xi'an began, "If they find out about this..." Chen Tang finished, "We'll never be able to show our faces again." They shook hands. "Pleasure doing business with you." * A prideful young lady who seems cold but is warm inside X a poor soul who loves sweets, seems warm but is cold inside Reading guide: 1. The heroine is stubborn, ridiculously prideful, and keeps everything bottled up. The hero is shameless, obnoxious, and willing to go all out. 2. They're old acquaintances, not former lovers. Coming soon: No One Will Save Me [Infinite]. Come take a look _(:D"∠)_ Help... Can anyone save her...? The train hurtled along, swaying nonstop. Thin moonlight spilled through the windows. In a corner, a pair of hands gripped a piece of metal tightly. Tears streaked the pale face. Heavy footsteps drew closer and closer. Creak. The thin door swung open, and a heavy stench of blood spread through the carriage. Her frail fingers suddenly clenched tighter. The sharp, rust-covered edge pierced her tender skin. She didn't want to die. Content warnings: 1. The heroine goes from pure white to black, then from black to red through redemption. 2. A story about struggles with human nature. 3. Attempts at deduction and puzzle-solving. Theme: Healthy competition doesn't prevent people from falling in love later.