Tama married her husband at a young age. He worked for the city, before dying in World War II, when Tama was nineteen. After her husband's death, her house burned down and her family died. She was found by the former head of the Domyoji family, Tsukasa's grandfather. Tama dedicated her life to working for him, and in return the Domyoji family will take care of her until her death.
Sumie Sasaki portrayed Tama in seven episodes of Hana Yori Dango Returns. In episode six, Tsukushi begins working as a maid under Tama's tutelage. Tama is supportive of Tsukushi's and Tsukasa's relationship, unlike his mother. Over time, Tama and Tsukushi develop a close student-teacher relationship. Natsuko Tanaka portrayed a young Tama in a photograph for episode eight.