

Maya Yamada - Assistant Homeroom Teacher of Chifuyu in Class One and former IS Representative Candidate of Japan.Chifuyu Orimura - Ichika's older sister, current Homeroom Teacher in Class One, 1st Year Dorm Supervisor and former IS Representative of Japan and Mondo Grosso champion.She appears in Volume 7 and Season 2, Episode 7. Kanzashi Sarashiki - 1st-year student at the IS Academy in Class Four, IS Representative Candidate of Japan and younger sister of Tatenashi Sarashiki.

She appears in Volume 5 & Season 2, Episode 1.

Laura Bodewig - Former pupil of Chifuyu, 1st-year transfer student at the IS Academy, Ichika's classmate in Class One and IS Representative Candidate of Germany.Charlotte Dunois - 1st-year transfer student at the IS Academy, Ichika's classmate in Class One and IS Representative Candidate of France.Lingyin Huang - 2nd childhood friend of Ichika, 1st-year transfer student at the IS Academy in Class Two, IS Representative Candidate of China and Class Representative of Class Two.Cecilia Alcott - 1st-year transfer student at the IS Academy and Ichika's classmate in Class One and IS Representative Candidate of England.Houki Shinonono - 1st childhood friend and Ichika's classmate in Class One, younger sister of Tabane Shinonono and 1st-year student at the IS Academy.Ichika Orimura - The main and the only protagonist of the light novel and anime, younger brother of Chifuyu Orimura, 1st-year student at the IS Academy in Class One, Class Representative of Class One and Vice-President of the Student Council.
