I knowwww I thought the same. I think that the hyung was in highschool back then tho, so like 8th grader x 10th grader maybe??? Hopefully??? I'd feel iffy if it was anything more than that. But they didn't kiss or anything back then!! So it was just mutual feelings ... But still
How old is the hyung? I feel like he's much older and he was grooming mc (╯°Д °)╯╧╧