As Sun-woo performs his duty — following Hee-soo, and escorting her to a music recital - he becomes quietly enthralled by the girl's beauty as glimpses into his lonely, empty personal life become prevalent. When he does come to discover Hee-soo and her lover at her home, he beats up the man and prepares to inform Kang. However, he changes his mind and spares the two on the condition that they no longer see each other again, earning him Hee-soo's enmity.