Hana Kirisaki is the mother of Chitoge Kirisaki and the wife of Adelt Kirisaki Wagner, the leader of a powerful gang. Known internationally as Madame Flower, she is a world-renowned business consultant and the founder of the multinational corporation Flower Corporation, which she built herself. Her influence is so vast that her schedule is booked up to ten years in advance, and her actions can impact the economy of Japan.

In appearance, Hana is remarkably youthful-looking, and Raku Ichijō notes that she could easily be mistaken for Chitoge's older sister rather than her mother. She typically dresses in sharp, dark business attire, often seen wearing a fur coat, a black jacket, and sunglasses, which contribute to her commanding and intimidating aura. A constant fixture in her mouth is a chocolate cigarette, which she chews on due to her restless nature.

Hana's personality is defined by her intense dedication to her work. She is a true workaholic who rarely sleeps or takes breaks, living by the motto that time is not money. Her hyper-efficient and no-nonsense attitude makes her a fearsome figure to her subordinates and even her own family; her intimidating personality is so potent that it can easily cow her husband and daughter. Despite her cold and ruthless exterior, Hana possesses a deep and sincere love for her daughter. However, she is emotionally clumsy and has great difficulty expressing her affection openly, which has created a painful distance between them. This failure to connect is highlighted in a poignant scene where she berates Chitoge for wearing a frayed red ribbon, failing to recognize it as a precious gift she had given her daughter years ago.

Her background reveals a fiercely independent and resilient youth. As a high school student, she worked an astonishing seventeen part-time jobs simultaneously to support herself. Her legendary toughness was on full display when she met her future husband, Adelt. While working as a pizza delivery girl, she wandered into the middle of a gang war. Adelt was immediately enamored and proposed to her on the spot; her response was to physically strike him, with one account claiming she even broke one of his bones. She had Chitoge at a young age, but as her corporate empire grew, she became increasingly absent from home, leaving Chitoge to feel neglected.

In the story, Hana plays a crucial role as a catalyst for character development, particularly for Chitoge and Raku. During a visit to Japan, her personal secretary collapses from exhaustion, and she conscripts Raku to serve as her temporary secretary. This serves as a test to evaluate whether he is worthy of her daughter. Through her interactions with Raku, who is able to see past her tough facade, Hana is forced to confront her failings as a mother. Her most significant development occurs when Raku, after working tirelessly to clear her schedule, manipulates events to force a Christmas Eve reunion between Hana and Chitoge. At the airport, after hearing Chitoge cry out for her, Hana turns her chartered plane around, leading to a tearful reconciliation on the tarmac. This event helps bridge the emotional gap between mother and daughter, allowing Hana to show the caring nature she had long suppressed.

Hana possesses several notable abilities. Her multilingualism is demonstrated when she effortlessly conducts teleconferences in several different languages. She has displayed amazing stamina, as Raku observed that she never seemed to rest or sleep. Her most famous asset, however, is her overwhelmingly intimidating personality, which commands respect and fear from everyone around her, from low-level employees to the head of a criminal organization.