I also thought that way. The last chance would be their uni era. The mystery left is whether Sunjae indeed suicide…
There's definitely something fishy about it.
My initial thought was murder. My second thought is that a fight/disagreement took place and Sun Jae fell amidst that. So an accident with someone trying to cover it up as suicid*
We've seen Sun Jae go through a pretty rough time with his injury and not being able to compete again. But through that we saw that he tends to go with the flow and doesn't really let set backs get to him. He's a pretty happy and optimistic person overall.
If we look at the original timeline, Sun Jae made a song about Im Sol and even tried reaching out to her via the podcast.
Im Sol also mentions that Sun Jae always sings the song he wrote for his first love. I.e. he's was hopeful and optimistic that one day Im Sol would remember.
Highly doubtful that he'd make a decision like that on the night he meets her again.
So what I'm getting from the trailers and previews is that this time Im Sol prevents her kidnapping but it's highly likely that both Im Sol and Sun Jae constantly fail to meet each other while the events unfold and Im Sol travels back to the future without them having met. And the 19 year old Im Sol that's back won't remember what happened and will most likely avoid Sun Jae - with everyone thinking that it was the kidnapping that caused this. And this leaves Sun Jae heartbroken.
Cut to 2024 - Im Sol returns to the day of the concert and manages to miss meeting Sun Jae at the place where they buried the time capsule - the part of the trailer where Sun Jae is reading the note in the time capsule by himself. And then they meet at the bridge. And then we see Sun Jae pretending that he doesn't remember Im Sol. I feel like Im Sol eventually goes back in time to figure something out and ends up back in the past but they're now in Uni/College. And the events that unfold there eventually leads them to date - with Im Sol successfully changing the future - Sun Jae does become an idol but with Im Sol by his side.
At the end of episode for, after that little turd drugs Ji An, sh e collapses and the camera more then once focuses…
I think those glasses probably show something that's not visible to the naked eye. The 0404 video cuts off. So maybe she needs to use the glasses to see a message or something that's hidden within the video.
I have seen many people comment that the drama has deviated from the webtoon in terms of the story line. Can someone tell me what the ending for the webtoon was and what major changes they made to the drama?
I'll probably read the webtoon at some point but just wanted to know before the show ends tomorrow.
K-Drama 
1 
My initial thought was murder. My second thought is that a fight/disagreement took place and Sun Jae fell amidst that. So an accident with someone trying to cover it up as suicid*
We've seen Sun Jae go through a pretty rough time with his injury and not being able to compete again. But through that we saw that he tends to go with the flow and doesn't really let set backs get to him. He's a pretty happy and optimistic person overall.
If we look at the original timeline, Sun Jae made a song about Im Sol and even tried reaching out to her via the podcast.
Im Sol also mentions that Sun Jae always sings the song he wrote for his first love. I.e. he's was hopeful and optimistic that one day Im Sol would remember.
Highly doubtful that he'd make a decision like that on the night he meets her again.
Cut to 2024 - Im Sol returns to the day of the concert and manages to miss meeting Sun Jae at the place where they buried the time capsule - the part of the trailer where Sun Jae is reading the note in the time capsule by himself. And then they meet at the bridge. And then we see Sun Jae pretending that he doesn't remember Im Sol. I feel like Im Sol eventually goes back in time to figure something out and ends up back in the past but they're now in Uni/College. And the events that unfold there eventually leads them to date - with Im Sol successfully changing the future - Sun Jae does become an idol but with Im Sol by his side.
PS : I absolutely love LDW! He's been brilliant in all of his shows lately.
I'll probably read the webtoon at some point but just wanted to know before the show ends tomorrow.
Missing LJW and JSM a lot! My chaotic duo!
My favorite are Scars Leave a Beautiful Trace and Aching from part1 and Blue Flower from part 2.