Taiyou is a cheerful boy who transfers into the all-male Kazami Dormitory of Seifu Private School after his parents move away to Naha, Okinawa for a job posting. His pretty and gentle features often mislead other boys into initially believing he is a girl, something used as a constant source of humour in the series. His outgoing personality and cheerful disposition allows him to make friends easily in the dorm and he soon becomes the favourite "pet" of dorm supervisor, Jin Kanbara. He has a vibrant love for flowers and floral arrangements, and has a healthy sense of respect for people skilled in this art. He has a childhood crush on his older cousin (actual relation unknown) Marika, who helped develop his interest in flowers. Taiyou shares a room with the initially taciturn and introverted Sono Kihihara, and plays a key role in setting up a school club devoted to flowers called the Bee Bee Company. He also works part-time at a flower store called Atelier Hinata, run by Hinata Suwa.