Let’s explore! Introduction to the characters of this drama

Suzuki Yui

Voiced by: Asuka Nishi

A third-year student at Momo Cheng High School, AB blood type. The director of the groping department is a returned child who grew up in Poland. He has a younger brother, with average grades, good motor skills, full mobility, and a habit of making pornographic jokes. The vice president of the student union has a good relationship with other clubs, so he can always get all kinds of help, including being able to freely use the gymnasium and asking other clubs to make props. After graduating from the first period, Aoi was asked to come back and continue to serve as the minister for the second period due to the setting of "not growing up". Sato Hina

Voice: Akisaka Satomi. A third-year student at Momo Cheng High School with type B blood. The deputy director of the groping department, with big breasts and hairy hair, is very virtuous, has a stable and calm personality, is a childhood sweetheart with her husband, and has the largest breasts among the members of the department. The second sister among the three sisters is a top student but not very good at sports. Like Yui, she graduated in the first period, but Aoi was invited back to serve as the deputy minister in the second period due to the setting of "not growing up". Aoi Takahashi

Voiced by: Ogino Karin, a second-year student at Momo Cheng High School with type O blood. He is an only child, with twin tails, average grades, very active, a bit self-centered, dares to say and do, likes to tell cold jokes, and doesn't like boys very much. Things have changed a bit since joining the club. She is good at sports and cares about her flat chest. Before the third-year students graduated, Yui gave them the position of minister. Finally, with the setting of "not growing up," the third-year students were invited back to continue their activities. Haru Tian Chuka

Voice: Ayaka Ohashi A first-year student at Momo Inari High School, with type A blood and a ponytail. She has a very serious and simple personality, a bit natural, and has an older sister. At first, I joined the exploration club because I didn’t know which club to join. Before the third-year students graduated, Hina was awarded the position of deputy minister. Finally, together with Aoi, they invited the third-year students back to continue their activities under the "not growing up" setting. Watanabe Mio

Voice: Mizuhara Kaoru

The former head of the Exploration Department, with a bold personality, was always regarded as a bad guy by Yui Ai and Hina. Aoi joined the Exploration Club because of her, and the tie Aoi wore was given to her when she graduated. Maiko Sonoda Moe

Voiced by: Rina Ueda

A third-year student at Momoge High School. Because her parents gave birth to multiples for three consecutive years, she has 18 younger sisters, all with the same pink hair and starry eyes. As a passerby on the show, she often helps the Discovery Department hold activities.