While this is Book 1, the Wilde Ways universe is huge (over 20 books). You can read them as standalones, but the cameos from previous couples make more sense if you read in order.
The plots are cinematic and over-the-top. Don't look for gritty realism; look for an action-movie vibe. How To Protect A Princess (Wild - Cynthia Eden....
If you finish this and want more "Princess/Bodyguard" or "Security Team" vibes, Cynthia Eden’s series or her Killer Instinct series are great next steps. While this is Book 1, the Wilde Ways