菇凉我独守空城只为等他
[gū liáng wŏ dú shŏu kōng chéng zhĭ wéi dĕng tā]
Here '菇凉' refers to oneself (female), while '独守空城'(lonely guarding empty city) evokes an image waiting for a specific male individual faithfully and alone like a soldier stationed without companionship.