His trauma reminds me of The Snow Queen, starring Hyun Bin. Also a math genius, he won the math contest and his friend committed suicide because he loss. He then disappeared because he blame himself. Sometimes being special is not a good thing
But on this story the gap most likely about 5 yrs 'only'
Korean drama make it looks good when it comes to older female and young male. Lee Do Hyun's next project is with Song Hye Kyo. another older lady for him lol. Song Hye Kyo's current drama is also with younger guy.