Hana Matsuzaki presides as matriarch over the Matsuzaki family at Coquelicot Manor boarding house after her husband’s death. She holds undisputed authority, with family and boarders demonstrating respect through gestures like awaiting her presence before meals and offering formal greetings. Her personality merges motherly warmth with stern discipline, particularly visible in raising her daughter Ryoko Matsuzaki—a dynamic that also shaped her granddaughter Umi Matsuzaki. Though she opposed Ryoko’s relationship with Yūichirō Sawamura, prompting Ryoko’s elopement, Hana ultimately welcomed Ryoko and the grandchildren into her home, providing steadfast care.

As household head, she manages finances, including renting rooms to boarders. To alleviate Umi’s duties, she hires Tomoko Shiraki for housekeeping. Hana acknowledges Umi’s grief over her father’s death and expresses sorrow regarding Umi’s daily ritual of raising maritime signal flags.

Tradition anchors Hana’s lifestyle: she frequently wears a kimono and occupies the house’s more traditionally Japanese spaces. Her preferences include a fondness for vodka and an aversion to fish, especially sardines. A striking physical resemblance connects Hana, Ryoko, and Umi across generations.