before I review on the couple let me just say Sang bum being scared to express his feelings shows how generally the cruelty teenagers face when being open about them self and Min ha shows the backlash we do when we gain the courage . he is bullied, and how the adults paid no attention says a lot I mean , bullying is usually the victims fault you will hear phrases such as "you should have told us , you shouldn't have provoked them , maybe if you talked more , or they just playing." which affects how the victim sees themselves and how their made to feel like their being dramatic. Sang bum who also hints that he also transferred because of the same situation that shows how bullying can affect you at a later stage and generally this show shows how bullying can really affect people

the relationship —now the fact that sang bum is afraid to receive backlash affects Min ha cause the person he developed courage to be public about his relationship makes him feel like a Problem which bring internalized homophobia and affects Min ha's personality. Now sang bum fear affects him because as much as he is afraid and doesn't want issues he is also wants to defend Min ha ( scene where Min ha got beat up and he didn't do anything) and Min ha realising that this relationship is affecting both of them decides to leave it and unfortunately the ending is left for speculation . which makes me feel like Min ha committed suicide as he didn't come to school and no one heard from him which would make sense since the the self harm and bullying but it's overall a beautiful movie and I hope you enjoy it as much as I did