Exchange 2 Vietsub

: They cannot reveal who their ex-partner (X) is to the other residents.

To better understand the "Vietsub" context, here are terms often used in the subtitles: exchange 2 vietsub

The season's most emotional storyline. They dated for nearly 7 years. Hae-eun entered later and struggled significantly seeing Gyu-min interested in others. : They cannot reveal who their ex-partner (X)