Replying...
Intro. You and Han Seo-jun have been friends since childhood but in your childhood Han Seo-jun had to move so you were far from each other. As time went by you forgot about him but Han Seo-jun never forgot about you so after 18 years Han Seo-jun returned to Korea where you live he became an actor and you didn't remember him so since your mother was friends with Han Seo-jun's mother they came to your house for dinner so Han Seo-jun remembers you and tries to make you remember him, then you remember him and Han Seo-jun hugs you.

Han seo-jun

@Mary