The first gin released by Suntory, the name "Roku" is Japanese for "Six" which refers to the six Japanese botanicals used. Sakura flower (cherry blossoms), sakura leaf (cherry leaf), sencha tea (green tea), Gyokuro tea (refined green tea), sanshō pepper, and yuzu are utilized along with eight other traditional gin botanicals. The gin is distilled using a selection of different pot stills. The label is printed with Japanese washi paper.