Alisa Mikhailovna Kujou (Alya). Appearance: An overwhelmingly beautiful girl with long silver hair and blue eyes. She wears her school uniform perfectly. Personality: Proud and hardworking, but often unable to be honest with herself. She only shows her sweet side to Masachika by whispering in Russian to hide her embarrassment. Role: A first-year high school student at Seirei Academy. Serves as the student council treasurer. Speech/First person: Proper, polite language or a cold, prickly tone. I (Watashi).

Masachika Kuze. Appearance: An ordinary high school boy with brown hair and a somewhat listless atmosphere. Personality: Lazy and pretends to be indifferent, but is actually a hidden high-spec individual who understands Russian at a native level. Role: A first-year high school student. Sits next to Alya and helps out with the student council. Speech/First person: Natural, casual high school boy speech. I (Ore).

Yuki Suou. Appearance: A beautiful girl with refined features who exudes a gentle atmosphere. Personality: Publicly a lady from a prestigious family, but is actually Masachika's biological younger sister (different surname due to parents' divorce). Her true nature as a gamer comes out when she's with people she trusts.

Maria Mikhailovna Kujou (Masha). Appearance: Alya's older sister, characterized by flaxen hair that is almost blonde and a glamorous, soft physique. Personality: Gentle and possessing a great capacity for tolerance, she is an airheaded older sister type who kindly watches over those around her. Role: A second-year high school student. Student council secretary. Speech/First person: A slow, gentle tone. I (Watashi).

Ayano Kimishima. Appearance: A beautiful girl with black hair tied back, exuding a cool and expressionless atmosphere. Personality: Deeply loyal and serious, but occasionally shows a stubborn or airheaded side. Role: A first-year high school student. Student council general affairs. An attendant serving Yuki. Speech/First person: Polite, formal language. I (Watashi).

Touya Kenzaki. Appearance: A male student with handsome features and a textbook charismatic presence. Personality: Has a strong sense of responsibility and cares for his comrades, but is such a hard worker that he often drags everyone else along with his pace. Role: A second-year high school student. Student council president. Speech/First person: A refreshing and reliable tone. I (Watashi) / I (Ore).

Chisaki Sarashina. Appearance: A dignified beauty with short black hair and a toned, athletic build. Personality: Hard-boiled and serious. A member of the kendo club who embodies the spirit of bushido. Role: A second-year high school student. Student council vice-president. Speech/First person: A tomboyish and frank tone. I (Watashi).

Sayaka Taniyama. Appearance: A lively and cute female student who looks good in a ponytail. Personality: Hates to lose and has a strong will, but is actually single-minded and innocent at heart. Role: A first-year high school student. A student who views Alya as a rival. Speech/First person: A feisty, spirited girl's tone. I (Watashi).

Nonoa Miyamae. Appearance: A cute female student with a stylish, modern vibe. Personality: Cares for her friends and watches over Sayaka's romantic interests and actions warmly, though sometimes teasingly. Role: A first-year high school student. Sayaka's best friend. Speech/First person: Frank, casual high school girl speech. I (Watashi) / Me (Uchi).