Clearly from the comments im not the only one confused damn
have you read pearl boy by any chance?
If you read pearl boy you'd know. He is his first love and the man he used to work for
Also please have some sleep.
The airplane scene is him going to honk kong where yuta was on business trip after that old man from the kujo family called him to tell him tetsu will assault yuta again.
I dont think u need to read pearl boy at all to understand that Seunghyeon had an obvious crush on jaeil and him ignoring his phone call at the last panel shows him moving on
That was shown in the first chapter ik abt that but i didn't understand what he was talking abt or referring
YES IK I DIDN'T MEAN THAT PART
Then u mean the old man? Hes just an old man who felt sorry for yuta and called seunghyeon to help him. Nothin confusing
Oh wait I'm sorry, you're speaking about the other old man lol
Wait maybe its cuz ive been awake 48 hours but like wth did that mean?? Who called him and was that airplane scene like him at the very beginning of the story going to the wedding or??? IM SO CONFUSED FUCK WTH WAS HE TALKING ABT CAN SOMEONE PLS EXPLAIN