Whether it is a seat or a sofa, it is made of teak wood produced in the Kyushu region, and is decorated with a fabric with a sea pattern. It is like a jade box gifted by the Princess of the Dragon Palace. The coastal section of this line can see Jinjiang Bay and Sakurajima. The scenery along the way is beautiful and charming, so it is often full and must be booked in advance. A lot of people will take photos or take photos with the jade box, because it is really a very chic train. The theme of the Man Long Palace is also arranged in the carriage, and pictures of the fish are hung everywhere, giving people the feeling of taking a car on the road and cruising the sea. When the door is opened, a white light smoke will float, which also indicates the metaphor of the jade hand box opened by Taro Urashima.