While gathering inspiration in Yunye, photographer Wen Ning meets Lu Jinye, a younger wealthy young master, and they fall passionately in love amidst the mountain wind and sunset. Due to a car accident, he suffers severe injuries and amnesia while protecting her, disappearing without a trace ever since. Guarding a jade safety buckle, she returns to the old place year after year, waiting for four years. When they meet again, he is already a group president, as gentle as ever, yet he alone has forgotten her. She restrains herself and retreats, but time and again his heart is stirred as he draws close. As the two retrace their old journey, the forgotten love gradually awakens: it turns out memories may scatter, but loving you is an instinct.