"Tsukushi is the ancient name of the area north-west of Kyushu [in the area of Chikuzen and Chikugo provinces] where Sakamoto was born. Sakamoto was rarely involved with sheet-prints, but like his colleagues on this series he had worked as a cartoonist and illustrator and had been a collaborator on the magazine Hōsun hence he was well used to graphic techniques. Indeed, his set [Tsukushi district] is the most strikingly designed in the series, combining impressionist, abstract and Expressionistic elements into a characteristically forceful blend."

Chikugogawa is the longest river in Kyushu that runs through southern Fukuoka Prefecture. This majestic river that flows into the Ariake Sea makes the ground here fertile. Here is a rice-production area blessed with clean water, with a plain that spreads over the Chikugo Basin around the main city of Kurume. This area attracts gourmets as it is a delicious sake production area, and the birthplace of pork ramen. Also, it has come into the spotlight for traditional handworks such as Kurume-gasuri and hand-made Japanese paper.