In Love and Deep Water

This romantic comedy mystery takes place aboard the MSC Bellissima, a massive luxury cruise liner. The ship's devoted butler, Suguru Ubukata (played by Ryo Yoshizawa), encounters an enigmatic woman named Chizuru Banjaku (played by Aoi Miyazaki), who has boarded the ship for a certain purpose. Together, they pursue the truth of a murder that occurs on the vessel.