Kyousui "Sui" Tougoku inherits his grandfather's traditional Japanese-style café, Rokuhoudou, which he operates alongside Gregorio "Gure" Valentino, Tokitaka Nagae, and Tsubaki Nakao. Their exceptional hospitality will definitely transform any one-time guest into a regular. After their own struggles and tribulations, the personnel at this humble café try their best to serve its clients, whether it's through tea, sweets, or even assisting with various problems.