Nakasu Zenjai is a confectionery in Nakasu, Fukuoka that serves the Japanese dessert zenjai and matcha shaved ice. The zenjai is made from whole red beans simmered in sugar and served with grilled rice cakes or ice cream. It is open from 11 AM to 5 PM and closed on Wednesdays, Fridays, and public holidays, with one menu item required per person and cash-only payment. For people who dislike sweet food, the strong sweetness of the red beans and shaved ice is overwhelming.