Zero by Kendra Mei Chailyn

Rei “Zero” Hakama should be happy. CIRO has been reinstated. Instead, he feels alone and lost. When he’s selected to be the exchange officer sent to Jamaica to help the JDF with training, Zero jumps at the chance—hoping a change of pace will do him good. That is until he lands on the island and his host goes missing.
Bailey Smith runs a tiny restaurant overlooking the ocean. It may not look like much, but the food is good and the company even better. Her life is great—until her brothers goes missing and she’s face to face with a man she has no right falling for.