Shi Fen had a childlike heart whenever Han Chen and Roy gets hurt and they always laughed at him for that but because they promised not to laugh at him anymore, they are not mocking him now.
"Don't worry, I know someone who can treat me at home," Han Chen said and smiled, Roy who had been stealing glances at the mirror in order to check on Han Chen and Shi Fen looked at him suspiciously when he smiled since that was not something he should be doing when he is hurt and now he is smiling as soon as he mentions someone who is going to treat him.
"Okay, that smile was suspicious I don't think that is something you can afford to smile for right now, so who is this person that is coming to treat you, because there is no one you know that we don't know," Roy said, Shi Fen smiles as he realizes who Han Chen might be talking bout while Han Chen ignores Roy's question.