Watch repairman Jiang Yu, following his father's dying wish, reserved a seat and warmed wine for the solitary old man Guan Muzhi every New Year's Eve for ten years. Others did not understand, and his lover gradually drifted away because of it. After Guan Muzhi passed away, a will revealed the truth: Jiang Yu inherited thirty-seven million yuan in assets under the old man's name, while relatives raised objections. As old photographs and manuscripts uncovered the past, Jiang Yu understood that what the old man left behind was not just wealth, but recognition of sincerity and trustworthiness. He turned this sentiment into action, protecting old street artisans and helping solitary old people, allowing a cup of warm wine to extend into warmth.