Love at First Sight: Young Master Yin’s Sweetheart

[The protagonist has bipolar disorder, is a math genius and a legendary gambler, and is also used as experimental material. Proceed with caution. If you dislike fragile characters, you can skip ahead to Chapter 99, when her secret identity is revealed.] A marriage contract that arrived out of nowhere pushed Lu Ran to the brink. She had never imagined she would be bound to the eldest young master of the Yin family, that ruthless, cold-hearted man from City A who was disabled in body and broken in spirit, and who stopped at nothing to get what he wanted. Lu Ran thought she had a bed of nails before her and a sheer cliff behind her. She never expected him to fall for her at first sight, then coax her into his arms step by step, making time itself more dazzling and the years more tender.