Sui is the tea expert and owner of Rokuhōdō, a traditional Japanese tea house. He manages the establishment with three colleagues specializing in distinct culinary arts: one crafts latte art, another creates confectioneries, and a third prepares meals. Sui's primary focus is tea preparation and the overall management of the tea house.

Rokuhōdō offers customers high-quality food and beverages and occasionally assists them with personal challenges, efforts where Sui collaborates closely with his team. Official media depicts Sui holding a cat named Kinako.

Available materials focus solely on Sui's professional role within the tea house setting.