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 he was a friend who had to die in front of his eyes again and again, and had to return every time, this kind of friendship had to disappear. Now, the terrifying thing wasn’t the training centre. He had become uninterested in encountering monsters or seeing someone else bleeding out in front of his eyes. “The most important thing to me is that you don’t endanger yourself.” The obsessive obsession with Baek Seon-woo’s safety. It was the beginning of our 11th school trip.