Crystal Harmony was designed for NYK/Crystal Cruises, USA, and has a gross tonnage of over 48,000 tonnes. Built by Mitsubishi Heavy Industries, Japan, she was delivered to Crystal Cruises in 1992, and at her launch she could accommodate 960 passengers and 505 crew. She was refurbished in 2000 at Vancouver Shipyard in Canada. In 2006 she was transferred to parent company Nippon Yusen Kaisha and renamed MS Asuka II. As of 2009 she was the largest cruise ship operating from Japan.