Hahari appears as a very mature and sophisticated woman until she sees something cute. She also has an uncontrollable love for cute things, including children, as well as Rentarou Aijou and his family. When she finds something cute, she may start drooling (or maybe nosebleed). Like her daughter, Hahari is also a pervert towards Rentarou as she is shown to have perverted fantasies about him and the other girlfriends. She is incredibly wealthy and willing to throw her money around to get what she (or Rentarou) wants. Although she fell in love with Rentarou, Hahari still deeply loves her deceased husband. She feels guilty about falling in love again until Rentarou comforts her and assures her that there is nothing wrong with loving more than one person. When Hahari was very young, she fell in love with a sickly boy her age who did not have long to live, and because of how much she loved him, she made arrangements with doctors to artificially inseminate herself with his genes in order to leave "proof of his existence". She gave birth to Hakari Hanazono when she was 13 years old and the boy she loved passed away before they could even kiss. Because of this experience, Hahari grew up jaded and constantly questioning if she was, or could be, happy without her love beside her. She devoted her entire life to Hakari and vowed to not let anything cause Hakari the same pain that Hahari went through. As a result, when Hahari finds out about Rentarou Aijou five-timing her daughter, she forbids Hakari from seeing him again. When Rentarou and his family sneak into her house in the middle of the night to steal Hakari away, Hahari is understandably angry and only refrains from having them hurt because it would make Hakari sad. She is initially resistant to believing that Rentarou loves Hakari, despite his vehement insistence that he does. Even after meeting his eyes and feeling the soulmate shock, Hahari continues to resist her feelings and keep Rentarou and Hakari apart. It isn't until Hakari attempts to jump from her bedroom window, and Rentarou saves her by putting himself in danger, that Hahari relents and accepts not only Hakari's feelings for Rentarou, but her own as well. It is at this point that Hahari is brought into the family, immediately gushing over how cute Rentarou is. Hahari buys the entire school and becomes chairwoman in order to stay close to Rentarou "Oh..I'm Hahari Hanazono. It's a pleasure to meet you."