The way they hold their hands is the same way both on their wedding day and at the end of the series.

So Pak Ha certainly sure that he is the real only one she is waiting for..

Tae Yong was born with fully loves her and wait for only her so that he falled in love with her at his first sight.

When Lee Gak disappeared , Tae Yong wakes up with full memories of him and find Pak Ha at the fruit juice shop and take his own way to date her.

Finally , they find each other.

“Even if 300 years passed, I will still love you”.