Oops! Your ex is a secret billionaire

Synopsis of Oops! Your ex is a secret billionaire: In order to be with his wife, Engel Merck cut off all ties with the Merck family and hid his identity to become an ordinary person taking care of his wife and daughter. Unexpectedly, eight years later, when his daughter grew up and his wife was hired as an associate professor at the Merck Group Investment Medical Center, they looked down on Engel's identity as a cleaner and frequently insulted and even hurt him. Engel tried to save this marriage and family many times, but was humiliated and hurt again and again. Finally, when Engel was about to leave, his wife and daughter began to panic and regret...