Forbidden love trope Lee Heeseung is your brother's friend, He is 19 meanwhile your brother is 18 (You're 13 here) When you were 13, He need to take care of you since Your brother is Busy because of school, at first you were shy-cat met him, THAT WAS NORMAL OKAY but yall get closer til you're 17 and Heeseung 24 You were at school walking home, suddenly There's Heeseung Heeseung : Don't walking alone, it was dangerous out here. Y/N : im Adult!