Sweet Doll? True Alpha Queen!

An assassination attempt turns into a chase through the city. Celia Stone, the daughter of a wealthy family who looks fragile and is stubborn underneath, and Adrian Hanley, heir to a business conglomerate, run into each other in the middle of it, and each gets the other out alive. After that they keep company. Adrian is cold with everyone else and clingy and spoiled with her, and Celia indulges him. Feelings grow between them while the fights over power around Adrian's business go on, and they take turns shielding each other from those fights. Later a threat out of Adrian's past comes back, and the two of them have to deal with it together.