rú​yǐng​suí​xíng

following

如影随形 (如影隨形) rú​yǐng​suí​xíng
following idiom
to follow someone relentlessly or trail them closely
inseparable idiom
closely associated with each other; always together like a shadow and the body

Frequency

Movie subtitles
0.800 per million appears in 0% of films
Written text
1.26 per million

Sources

Definitions
CC-CEDICT