On a stormy night, Lin Wanqing clenched her father's critical condition notice, staring through the windshield at the silver Bentley—the emblem of Gu Chengyan. "Miss Lin, 80 million yuan for your father's heart," he tossed the documents, the black diamond ring glinting coldly before her eyes. "Marry me in a sham marriage for one year. I'll save the Lin family, and you'll pretend to be my loving wife." Three days ago, she had stood in the fitting room in a wedding dress while her fiancé Shen Yanzhi held a blue diamond, saying, "I'll provide for you." Now, her "best friend" Su Manni sat in Shen Yanzhi's sports car, mouthing: "Your father's life for my prosperity." Lin Wanqing gripped the ring until her knuckles turned white. The ticking of her father's heart monitor echoed in her ears—1 minute, 59 seconds remaining. Could she afford to gamble? "Deal," she slid on the ring, a sharpness in her smile. "But conditions: secret marriage, no interference in personal affairs, and..." She stood on tiptoe, whispering in his ear, "If you dare fall for me, I'll plaster Gu Group Tower with that ugly rose you drew on my studio wall." Gu Chengyan's pupils constricted—on that stormy night three years ago, she had indeed found him secretly sketching her in the studio: white dress, sunflower field, and himself hiding behind a tree, the rose in his drawing thorned. At the wedding, Su Manni charged the stage with photos of "Shen Yanzhi's proposal history"; Gu Chengyan's assistant handed over "Lin Family Financial Vulnerabilities Report"; and in Lin Wanqing's earring, the red light of a micro-recorder flickered. Her gamble had never been on Gu Chengyan's patience. It was on the secret hidden in his black diamond ring, the counterattack chips she kept in her cuff, and which of them would lose their heart first in this contractual marriage. "The game of Mrs. Gu is just beginning."