When in a relationship, you are just a shadow of another person, is it a coincidence or is there something hidden? When the illusion of happiness was completely exposed by a diary full of affection, and when she witnessed his heartbroken eyes for her lover at the wedding, she finally understood: some warmth is destined to be just borrowed light. It always rains in this city, but this time, she decided not to wait for someone's umbrella, but to become her own sun.
Jing Yi is calm and self-possessed, with extraordinary charm. All his tenderness and affection are given to Yu Ning without reservation. However, after Yu Ning resolutely followed her true love and left, the heartbroken Jing Yi turned her attention to Yu An, who looked similar to her. A love affair that began with a "substitute" begins. She sinks soberly, greedily absorbing the tenderness that does not belong to her, but in every intimate moment, she keenly captures the traces of him gazing at another person through herself.
This is a story about love, humility, sobriety and sinking, and ultimately about the transformation of letting go and self-growth.