The Billionaire Janitor Returns! — Episode 18

Billionaire tycoon Jack retired to spend time with his family. Once the CEO of the world's largest defense contractor, he now works as a simple school janitor. When his ungrateful son kicks him out to make room for a new baby, Jack's life takes a turn. After saving a young woman from danger, she introduces him to her mother, Emma, a cold school principal. The two enter into a contract marriage. As the school dean constantly plots to ruin Emma, Jack steps in to shield her and even saves the school from bankruptcy. Just as Emma faces her biggest crisis and is about to be ousted by the school board, Jack steps in with billions to save her from humiliation. Finally, his true identity is revealed—he is the richest man in the world!