I think the author decided to not have him remember her so when she comes back in their world and they remember her, the brother would be "Ah, I didn't remember her at all. Maybe it wasn't meant to be." like putting a final stone that their shop has long sailled never to return.
*ship not shop
Spoiler!
No. In the novel he remembered her. Like chunyoung, he waited for her albeit at the bus stop. The reason why he broke up with Dan-I is because he's jealous of 4HK for being closed with Dan-I and before he do something he might regret and become toxic, he broke up with Dan-I
Yeah make sense, it sucks bc it seems like she really did like him and was hurt if he went with another girl. Also I saw a comment saying how in the cover with him and her, she was smiling for the first time during. UGH NOTHING EVER GOES MY WAY ╥﹏╥. Oh well but thank you!!
UGH BREAKING UP WITH HER TO PROTECT HER ╥﹏╥ ┗( T﹏T )┛ugh I love him, it makes sense but still it sucks that they (at least I think) were meant to be.
Guys I want the brother to be the ML so bad. Like if i see him being heartbroken that they don't end up together I will cry. I wanna see the reaction of him missing her. I think they are so perfect together, like when I see them together I just smile. okay i'm done with my rant.