That was seonin's another brother i guess he played a villain role in their school life
yeah i just want to know the backstory of that high school relationship and what had happened to affect their communication T_T
aftr reading it many times so i get some point like=
seoin loves baek i meant the uke a lot and they practice those 18+ thingy but uke saw seoin and his brother kissing cause of that he made himself distance from seoin as from pov of him he thought seoin got his loved back or something else thats why they got distant ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄ i am not 10000% sure it just my theory
okay but i still want to know and understand the backstory between that other friend from high school... (he passed away? why and how) like what was his relationship between the mc and ml... i feel so lost and story deprived