Akane, who was born and raised in Osaka, speaks in the Kansai dialect" She has a tomboyish personality, which is often reflected in the way she stands or sits. Despite her tomboyishness, she loves cute things and has a soft spot for gorillas.

Akane is a passionate girl who loves making others laugh. The first impression she gives is that of the class jokester, always full of puns and jokes to make her classmates laugh. As such, she appears to be generally popular and well-liked. Her friends see her as an interesting girl who always manages to make them laugh. She has a habit of speaking her mind, which can get a little out of hand sometimes, such as when she introduced Nao, Reika, and Yayoi to Miyuki as being a "female gang leader", "Miss Popular" and "crybaby" respectively, causing visible discomfort to the three. Yayoi, with her crybaby personality and fascination with superheroes, is often the target of Akane's jokes. However, there does not seem to be any ill-meaning behind the teasing, and the other girls seldom take offense.

Despite all the teasing, Akane is extremely loyal to her friends. She also tends to act before she thinks. For example, when she witnessed Cure Happy being defeated by an Akanbe, she remembered how Miyuki had helped her out, and immediately went to help Happy even though she had no chance of winning against the Akanbe. Her strong wish to help her friend earned her the Smile Pact and allowed her to transform into Cure Sunny.

Concerning being a Pretty Cure, Akane was initially against the idea, turning down Miyuki's bold invitation. When she did become a Cure, she seemed quite cool about the whole idea, ready to do her best in battle, though not overwhelmingly enthusiastic like Miyuki or Yayoi. Similar to Nao, she does not understand why Miyuki and Yayoi are so hyped up about being "superheroes", and gives Miyuki a cool reception when she insists on the group coming up with a signature phrase.Ironically, though she loves to make puns, she was initially embarrassed by the ones made in her Cure introductory speech.

In terms of sports, Akane is excellent at volleyball, easily beating her classmates in a friendly match. She aims to become the ace attacker of the school volleyball team and comes down hard on herself when she is unable to perform well. She is also an independent girl, as she told Miyuki that she does not normally allow others to help her out, but gave Miyuki a chance to help her with volleyball training due to her enthusiasm and willingness. She can also be extremely focused, as she turned down Miyuki's offer to become a Pretty Cure (or "kiripura" as she mistakenly calls it) as she wanted to focus more on her volleyball training

Akane's family runs an okonomiyaki restaurant, and it is shown that Akane enjoys cooking.