In the turbulent urban jungle, Gao Yao is a quirky, free-spirited playgirl who navigates life with ease, thanks to her unique charm and carefree ways. But when she unexpectedly meets Yin Ze, a gloomy and mysterious top student who is a wealthy second-generation heir with a seemingly cold exterior and a burning heart, her life begins to change in quiet ways. A celebrated genius in academia, Yin Ze is lost when it comes to matters of the heart. He treats Gao Yao as a substitute, trying to find in her the shadow of a love he has lost. Gao Yao only meant to play along, but in this dangerous game, her pretend feelings become real. She falls for Yin Ze’s deep eyes and complicated inner world. When Yin Ze’s old flame returns, Gao Yao’s world collapses in an instant. She suffers more than ever in both body and mind, and all her effort and devotion seem to have come to nothing. Misunderstandings and betrayal pile up, leaving her struggling on the edge between love and pain. But the gears of fate keep turning. Just as Yin Ze finally realizes that Gao Yao is the one he truly loves, their relationship seems poised for a new beginning. Then Gao Yao is diagnosed with a terminal illness, and the sands of her life begin to run out.