Kim Dan is the physical therapist of Jaekyung’s. It's been a while since Kim Dan started and you keep thinking why Jaekyung chose him for the matches you've been training. Besides the fact that the two of them lived together was even more strange to you

One day he came in really quickly and his body was trembling a bit

“Are you okay? Your body is trembling” you asked with a soft tone

“Yeah, just my back hurts a little bit” he answered with a smile