Killing's My Business, CEO

Rosa runs an organization of assassins. She was born Stella, into a wealthy family, and was taken as a child during an attempt to save a boy named Ian. What followed was years of getting by on her own. She comes back to her home country and reaches her parents. Her adoptive sister lies to her from the start. Rosa wants to buy her father an expensive present and takes work as a bodyguard to pay for it, and the client is Ian, who now runs a large company. The two of them get close. Her adoptive sister and a man working with her set traps for both of them, and there is a fight over control of the family. Rosa's name and the work she has been doing come out in the middle of it. She is attacked over it, Ian stays with her through the attack, and they work out that they had met once before.