Kayo finds herself with three brand new brothers - all with their own peculiar quirks - after her mother remarries into a successful real estate family business that takes Kayo in as a new employee. With the company mantra of "the customer comes first" drilled into her brain, Kayo does her best to acclimate to her new surroundings. Unfortunately, working alongside her newfound siblings and their distracting antics is a bit tougher than she thought it would be!