Hiroko has brown eyes and short wavy tawny hair. She is seen wearing a white shirt with a teal coat which has two pockets and a collar which hugs her neck. She wears a brown belt. Her jeans are aegean with two pockets on two sides. She also wears white and yellow shoes with white threads.
She is a woman who loves her children very much, however, she is usually away from home, so she can't take care of them. She is friendly and seems to be quite humorous.
- Sagara Seiji and Sagara Mao: Her children. She loves them very much. However, she is busy with her work so see can't be with them often.
- Aino Kaori: Her neighbor, who usually has Seiji and Mao over for dinner at her house when Hiroko is away from home.
|V • T • EHappiness Charge Pretty Cure! characters|
|Cures||Aino Megumi/Cure Lovely • Shirayuki Hime/Cure Princess • Omori Yuko/Cure Honey • Hikawa Iona/Cure Fortune • Hikawa Maria/Cure Tender • International Pretty Cure Teams|
|Mascots||Ribbon • Glasan • Aloalo • PhanPhan|
|Villains||Deep Mirror/Red • Queen Mirage/Cure Mirage • Namakelder • Hosshiwa • Oresky • Phantom • Madam Momere • Saiark • Choiark|
|Others||Blue • Sagara Seiji • Sagara Mao • Aino Kaori • Sagara Hiroko • Izumi • Omori Yoko • Omori Takeo • Omori Ai • Omori Ine • Omori Yonezo • Masuko Miyo • Shiina Elena • Furuta Kana • Takano Rei • Ishigami Rin • Hitomi • Yamazaki Kenta • Kaidou Yuya • Jindaiji Mami • Aino Masaru|
|Movie only||Orihara Tsumugi • Prince Zeke • Black Fang • Funassyi • Funagora|