this is very quite, slow pace movie without any exciting events
very normal story line
although it was slow but it wasn't boring

but i felt the writer kept repeating separating them and meeting again by chance which was annoying and illogical

suddenly they stop talking to each other even across the e-mail
which i didn't get why

and the timing wasn't logic either
two people met for few days then left each other for years then met again
for a day then left for years
then 15 years passed at the same rhythm i think it wasn't logical to stay loving each other with no real situations between them
and i didn't get why they get quarreled, may be the translation was bad but i got it was a trust issue

how come he assumed she should trust him without trusting her first and tell her what happened that day
(even the writer didn't trust us to tell us clearly assuming we should guess by ourselves) LOL :/

and the role of the 2nd ML was very fluid

i found the story was flimsy and lukewarm

it wasted (jung hae in) & (kim go eun) talent in my opinion