"Where's that damn personal assistant?"

With his father's abrupt passing, Young-Jae unexpectedly becomes CEO of his company. He barely knew his father, until last year when the man – a true bastard – begged his mother's forgiveness, after impregnating her at 19 and then leaving her.

Day one on the job, already frustrated, he's yelling at an employee about the tardy assistant. Then, a timid voice answered and when he turns, he's met with a bewildering sight.

Hold on—his assistant is his ex?!