From fictiondb: He invaded a lot more than her privacy. Playing a sexy villainess on TV was a challenge for actress Abby Swan. She was the woman America loved to hate. But for one person fantasy was reality, and Abby's life was in danger. Sam Garrett, FBI, had to protect her. The resourceful agent set up a 24-hour surveillance - by moving into her Malibu home! Before long, Abby knew she wouldn't mind if this virile stranger stayed forever...

Isobel, who works at a gallery in London, was vacationing on a remote island in Greece when she slipped off a cliff and was knocked unconscious. When she came to, a gorgeous man was looking back at her. He had a salty attitude, and Isobel quickly learned why. He was Lukas, a Greek millionaire. Lukas wondered whether Isobel had injured herself on purpose to lure him in, but his concerns were quickly allayed and their attraction grew. Still, there are dark shadows that loom in Lukas’s eyes and never seem to go away. And a darkness from Isobel’s past lurks in her heart, too.

https://www.cmoa.jp/title/99929/