I thought we need some quick explanation, so made it.
— My Happy Jin💋행복찐 (@MyHappyJin) August 22, 2018
Yangban is the Joseon Dynasty period's aristocrat. and they do cough when they get in to somewhere and it means "stop say bad thing about me" to their servant. (It's not always, but basically) pic.twitter.com/D2QW5cCzzW

인스티즈앱