Su Louzhi thinks the best deal she's ever made in her life was trading with the system for a second chance. The system tells her, "The mission is incredibly simple. You only need to make five appearances. As for the price—pick one: your sight, your hearing, or your ability to speak." Su Louzhi chooses muteness without hesitation. After her rebirth, everything is perfect. No family weighing her down, an obscenely large bank balance, and everyone she meets is exceptionally kind to her. The mission really does seem simple too: at 3:00 p.m. on September 30, 2026, stand in the alley beside the school for half an hour. Su Louzhi: That's it? Free lunch really does fall from the sky? It isn't until four blond-haired thugs corner her in the alley and leave her sobbing uncontrollably that she realizes the system's words can't entirely be trusted. Just as despair sets in, a man approaches against the light. — Ji Kailan, the only son of the Ji family, sole heir to the Ji Group, and the world's one and only top-tier Enigma. Rich. Handsome. Brilliant. Perfect physique. If not for the fact that, as the only top-tier Enigma, no one can withstand his pheromones while he himself cannot tolerate anyone else's inferior pheromones, he would practically be the overpowered male lead of a novel. Unfortunately, there are no ifs. The doctors have already delivered their verdict: no one can suppress his uncontrollable pheromones, and he is destined to die before thirty. Ji Kailan believes he has little time left. Then he meets Su Louzhi. She has no pheromones whatsoever. Clean and pure, like a perfect vacuum. Her looks match his tastes exactly, and her personality strikes straight at his heart. Ji Kailan's Adam's apple bobs unconsciously. Only one thought remains in his mind: She can only be mine. And so begins his long campaign to legally lure her into his clutches: engineering "chance" encounters, creating opportunities for them to be alone, playing pitiful to win her sympathy, and sneaking into her room while she naps. Su Louzhi remains completely oblivious. If anything, she thinks, Wow, this senior is such a nice person. So considerate and gentle. Until one day, she finally discovers that he's been putting... something in the milk she drinks. Once he's caught, Ji Kailan only gets worse; he even fastens a tracking bracelet around her wrist. Su Louzhi: "..." Whatever. She's already fallen for him. What else can she do?