Synopsis

Known as Zero, the retired King of Killers faked his death in a blast under the alias Ethan Cross and lived quietly as a food delivery driver, longing for a peaceful life. To keep his five-star rating, he stopped a violent sasaeng breaking into A-list star Scarlett’s house in three seconds during a delivery. Scarlett put up a $15 million global bounty to find and marry him, blowing Ethan’s cover. Interpol and old enemies hunted him, while his former subordinate Seven’s clumsy team protection only stirred up more chaos. Ethan became Scarlett’s bodyguard and foiled a gala assassination. He defeated the traitor Ghost’s rebellion, with Scarlett documenting everything for a documentary. Finally, Ethan abandoned his killer title and found warm, ordinary happiness with Scarlett.