Su Yan, who has lived for six thousand years, has waited for three thousand years with an obsession. In a modern second-hand bookstore, Shen Mei walked in with a plum blossom hairpin and an old county chronicle of hidden plum blossoms, shattering his dusty time. She always has dreams about her past life, red marks appear on her wrists for no reason, and the plum blossom hairpin hides an unsolved secret.
The men in black pressed closer, and the hairpin was repeatedly coveted. Su Yan finally confessed his identity - he was the general who guarded her during the Western Zhou Dynasty, and he was also the idiot who guarded her three reincarnations. The sweetness of embracing each other and recognizing each other was fleeting. An old friend in an ancient temple deep in the mountains betrayed her. Su Yan used his body to tear open the light net and push her to escape. His own life or death was uncertain.
After three years of wandering, Shen Mei opened the "Waiting for Someone" bookstore in a small southern town. The plum blossom mark quietly appeared on her palm. She finally awakened, sought allies, learned to protect herself, and vowed to find her old friend. After the reunion, the villain's six-thousand-year chess game was revealed, and the truth about the Plum Blossom Seal and the Immortality Pill came to light. In the final showdown, Shen Mei returned the plum blossom seal to Su Yan. This sweet and sad entanglement that spanned three thousand years finally came to perfection under the plum blossom tree. The plum blossoms fell and the old friends grew old together.