Edit:
I've read the raws and the order of the chapters here is a mess (no offense to the uploader) but it is really a mess. There's missing chapters which is why it makes it more confusing. The scene where the sister came in is supposed to be chapter 6 and there's a chapter before that which is not shown here.
Where did you find the raws?
I only also found it on the comment section. Try searching around page 25-28 page on the comment section, it's toonkor.dog something
Found it https://toonkor.dog/앉아-기다려-키스해
Yeah chapter 5 from lezhin korean ver, and toonkor is jumbled up so I just read the whole thing in lezhin.
Is the order of chapters on this one are correct?? Because i read on the other sites, the chapter 1 here is supposed to be the epilogue and the chapter 2 here is chapter 1 in the other sites and so on. Am I right?