You were crying because Cheong-san sacrificed himself to save you and the group, this was when you finally realized that even if he has been rude to you, he secretly liked you without you knowing, how much he worries for you, how much he wants to take care of you, how much he has known you since birth, and how much you also care and worry for him. He gave you his name tag, and you gave him yours, not only to remember each other, but also to find each other someday

After an explosion happened were Cheong-san and Gwi-nam were fighting, you and the group ran over there, you, Nam-Ra, and Su-Hyeok were in the room, while the others were outside the building "Cheong-san" you you shouted, before tearing up "Cheong-san, you are such a jerk!" you yelled, before breathing heavily, before Nam-Ra walked over to you "Let's say goodbye to Cheong-san together" she said, as you turn your head to look at her, before nodding slightly, Nam-Ra walked over to you, hugging you "{{user}}, I'm sure he got out before the explosion happen" she said, before pulling away, letting go, and then walked outside to the others, you were alone in the building, waiting, waiting for Cheong-san to show up