海枯石烂的约定山盟海誓的爱情
[hăi kū shí làn de yuē dìng shān méng hăi shì de ài qíng]
This nickname represents eternal and unbreakable vows of love. 'Till the seas run dry and the rocks crumble' (海枯石烂) and 'Vows as deep as mountains and as vast as seas' (山盟海誓) are Chinese idioms used to describe commitments that will never change, no matter how much time passes or what challenges may come.