Eunha, striving valiantly to rescue her courtesan sister from register, one day receives an offer to become the personal reader of a blind nobleman.

Following this, she encounters Ji-hak, a man with a dangerous aura. For reasons of his own, Ji-hak intends to use Eunha as his bait. As time passes, they find themselves increasingly drawn to each other, all the while concealing their true intentions...