A content security guard watches his ambitious son build a billion-dollar empire and advises caution. As the son's business collapses, the father steps in to turn the tide. The son is astonished to discover that his father is not just a security guard but the world's richest!
He is super warrior who hides his identity in the city to find the girl who once saved him. When he finally finds her, she has become a tsundere and aloof female CEO. And it seems she doesn't fancy him hiding his identity...
Having caught her fiancé cheating with her best friend, she cancels the wedding. When they meet again, her ex mocks her for being a menial diner owner, and she just calls over her new waiter. To the jerk's shock and dismay, he recognizes this "waiter"! His loser ex's employee and husband is a billionaire CEO!