"Just remember that I'll always love you even if we're far apart."

Those words were the only thing that was kept locked in his mind.
Those last and few memories that Jisung made with his very first and last girlfriend.

Days...
Weeks...
Months...
Years...

4 years ever since Jieun left to live where her dad had grew up.
But those 4 years, Jisung has been going around the world, looking for her, his love.
But what if...she finally did come back?