The Secret That Cannot Be Told

Si Won and Da Un decide to visit a book cafe, but they flee the spot after Si Won runs into his father with another woman. He rides a bike to cool himself off, leaving Da Un behind after he falls off his bike. Si Won returns and apologizes for his insensitive behaviour. Da Un clears up any misunderstandings regarding his actions to Si Won. He gives a 'covered kiss' to him, leaving Si Won confused.