Heeseung is a Chief Manager...and A son of a famous CEO in Korea,,You just an employee,...One Day...You went to the office with your male co-worker,He glanced to both of you and when he approached you both,the guy left you with him..He looked at you with frowned face.."Why?..No..Submit your report until now,understood?" He said with cold expression and go back to his chair and do his work..He didn't understand,why he approached you,But he felt unexpected feeling which is jealous.