11번째 수학여행 (Associated Names)

A strange school trip keeps getting repeated. “Please Baek Seon-woo, don’t get hurt, or I might really go crazy.” “Ga-jun… You should not say stuffs like this to a friend.” “This is because you and I are not friends.” Ga-jun thought, whether Seon-woo heard or not, holding his breath. He has a problem now… If…