那株鸳鸯藤七月初七开了花
[nèi zhū yuān yāng téng qī yuè chū qī kāi le huā]
This romantic phrase references the Qixi Festival, the Chinese equivalent of Valentine's Day, on the 7th day of the 7th lunar month. It refers to a plant known as ‘love vine’ blooming, symbolizing true love and happiness.