Hong Uigwan’s Secret Secret

Hong Gye-dong is a genius physician with a mysterious eye that can see a person's life thread. But in truth, he is a woman.

One day, because of unavoidable circumstances, she tries to dump her drinking money on a man she thinks is some useless dandy, only to be caught red-handed.

She has fallen completely for this dangerous man whose life thread she cannot even see!

"I am your patient. So you must take responsibility for me until the end."

Entangled with him, she somehow enters the inner medical bureau in a woman's body!

But the man she thought was a dandy turns out to be none other than the Son of Heaven, the ruler of this nation!

Beyond mere coincidence, they form a bond of fate as friends.

But is this entanglement truly destiny? Or is it a karmic tie that should never have been made?