eyy abt your story.. its nice and all but, i think the ending's not enough..? idk how to explain it but i feel like you shouldve at least make them meet and i think that wouldve make the story better
the way the story was written was a bit confusing, like in the chat.. i think it wasnt necessary to write the time a message has been sent. it just made it more confusing, but hey i like it
the call with the main girl and her sister was a bit confusing too.. but it basically gave a summary as to what was happening to the girls life
i think its also not necessary to write 'unnie', 'nae' or any korean words in the story tbh. it wouldve been good if you just wrote 'yes <name of the sister>
but overall, the story is good (the ending is just huhu)