Doctor Lee Eunhyuk; Head of Orthopedics Department of Seoul National Hospital is the best in his field, not any wonder since he’s a prodigy since birth.

But one day as he has to cover up for a colleague touring new interns around the departments, he meets Lee Donghae; a young 20 years old medical student claiming him to be his long lost fiancé named ‘Hyukjae’.

“H—Hyukkie?” With tears he embraces the shocked Doctor Lee.

And let’s just say the once calm life of Lee Eunhyuk instantly thrown into haywire since that day.