Sorry for Being Late

In an accident, she saved him from becoming a vegetative state. Just because her parents decided to marry her as a child, she kept him for more than a year. He woke up a year later, but without any memory, he left her world quietly! In order to find out the truth behind her parents' death, she went undercover in the company, but unexpectedly the new president was the one she saved! The frame-up of a love rival and the conspiracy of the enemy are slowly revealed bit by bit...