奈何桥下的约定奈何桥下的相见
[nài hé qiáo xià de yuē dìng nài hé qiáo xià de xiāng jiàn]
'Promises and reunions under the Netherworld Bridge' refers to agreements and encounters happening at the Netherworld Bridge, a bridge found in traditional Chinese mythology. It symbolizes afterlife meetings and unfulfilled promises.