Hiromi initially appears unsure of herself in conversations due to concerns about her appearance. her distinctive eye shape makes her worry that she looks aggressive, while her neutral facial expression has been misinterpreted as an angry one in cinderella girls theater comics. these fears cause her to practice smiling naturally in the idolm@ster cinderella girls - comic anthology cute. as she gains confidence, hiromi becomes more adept at making accessories and taking inspiration from her surroundings. despite being young, she is responsible and takes her role as an idol seriously. if left unsupervised, she leads the way, motivating her fellow idols to work harder or protecting younger ones. however, her eagerness to improve can sometimes lead her to imitate certain idols who should not be emulated.