The colour scheme of the ordinary car seating is inspired by the blue waters of the Mogami River, combined with the lush greenery covering Mount Gassan. The Green car seating draws inspiration from the traditional process of extracting the colour of the safflower, which is why the colour gradually becomes less saturated moving from the seat cushion to the headrest. The center aisle carpet was designed based on the image of the safflower, represented by the seats, reflecting on the waters of the Mogami River as it flows between them.