An Enemies-To-Lovers Billionaire Romance Irish Billionaires is a spin-off of Sienna's popular Irish Kiss series. Revisit moody and romantic Ireland with all their sexy broody men... Ronan O’Hara. Playboy heir. Billionaire. Hot Mess. He plays his part as the black sheep of the Dublin elite with aplomb. Utterly bored with his gilded life, Ronan makes a bet with his friends that he can transform a mere waitress into a sophisticated member of the upper class. His target? Delaney Evans. Sassy. Uncouth. A loud-mouthed American. Ronan doesn’t realize he has more than his work cut out for him. He didn’t count on the fireworks that would go off whenever they’d touch. He didn’t count on her seeing right through his façade. He didn’t count on falling for her…