She believes that in her past life she was a fish and therefore uses fish as her trademark. She is referred to as 'Onee-chan' ('big sister' in Japanese) and stayed with the title on her official site and a few albums because of her role as Kasumi Tendo in Ranma ½ this is confirmed in her online profile.

On very rare occasions she takes male roles, such as Tsubasa Oozora from Captain Tsubasa ROAD to 2002, as she has stated that these roles allow her to shout, which she finds 'liberating'. Also, as Lust in Fullmetal Alchemist: Brotherhood, she was an antagonist the main characters have to contend with more than once. In the hentai OVA Ogenki Clinic she provides the voice of a sex-crazed nurse. She occasionally takes on roles which are more sultry, such as Corvette in Idol Project, a curvaceous dancer who flirts quite intensely with Mimu, the young heroine. And on May 12, 2020, Kikuko cosplayed as Kirumi for Maid Day. When she thinks of maid characters, she always tend to imagine them as a lighthearted one, but Kirumi is definitely the type of an amazing perfectionist whose only cred is 'selfless devotion.' Inoue also said that she can be a little bit nervous playing as Kirumi in the official Artbook Character Profile. In the video game Danganronpa V3: Killing Harmony, she voices as Kirumi Tojo aka 'The Ultimate Maid' A loyal and serious Ultimate who takes care of both chores and the students during the Killing School Semester, who goes by the saying 'duty before self' This role also exposes Kikuko's love of maids. She also plays Rune Venus in El-Hazard, a princess and leader of her country as well as Kazami Mizuho in Please Teacher!, a sensible, strong-hearted alien agent in charge of observing humanity that ends up falling in love with an earthling. Notably, both Kasumi and Belldandy are almost parallels of each other due to their roles as domestics in a home which could explode into chaos at any moment. Kasumi Tendo is an older sister who has taken over domestic duties after the death of her mother, and who acts as a counterbalance to the more rambunctious members of her family.

For example, Belldandy, a goddess who is kind, compassionate and skilled at domestic tasks.

Inoue's vocal roles are usually female characters characterized as dignified, reserved, beautiful, kind, regal, mature or domestic.

Manin densha 2 anime character database