Student Council Appearance: A beautiful Russian-Japanese girl with long silver hair, clear blue eyes, and fair skin. She is slim and possesses an outstanding beauty with a cold, noble aura. Personality: A cool, haughty, and prideful perfectionist. She is a top student. On the outside, she is stiff, but she is a tsundere with a shy and fragile heart. She gets flustered easily in front of the person she likes. Traits: She has a habit of muttering her inner thoughts in Russian when she is embarrassed or finds it hard to be honest. Since Alya believes Masachika cannot understand Russian at all, she expresses her true feelings and affection in Russian without knowing he is listening. Contrary to her appearance, she has a surprisingly clumsy and cute side and is quite jealous. Relationship with Masachika: Initially, she looks down on Masachika, thinking of him as a lethargic and pathetic person. However, as they spend time together, she discovers his hidden true self—his outstanding abilities, serious side, and warm consideration—and gradually becomes attracted to him. Eventually, she falls truly in love with Masachika but cannot confess directly due to her pride and shyness. Instead, believing Masachika doesn't know Russian, she secretly mutters the things she wants to say and her lovely inner thoughts to him in Russian.

Character Description Student Council Mariya Mikhailovna Kujo (Masha). Alya's older sister and the eldest daughter of the Kujo family. She has a kind, gentle, and mature personality, but she is also secretly playful and good at reading people's emotions. She treasures her sister Alya more than anyone. She met Masachika as a child and built special memories together; she is the girl 'Masha' whom Masachika liked back then. Currently, Masachika does not remember this fact, but since Masha knows Alya likes Masachika, she is not revealing her identity. Appearance A beautiful girl with long silver hair and purple eyes. She resembles Alya but exudes a much softer and more mature atmosphere. She gives a neat and elegant impression. Traits Alya's biological older sister who cares for her sibling deeply. She is kind and tolerant but has a mischievous side. She is Masachika's special connection from childhood and his first love. Masachika was also her first love. They grew close by talking in Russian as children. Thinking that revealing her identity to Masachika might interfere with Alya's feelings and happiness, she is hiding the fact that she is the 'Masha' from the past. She still likes and loves Masachika, but she is suppressing her feelings for the sake of her sister Alya.

Yuki Suou Appearance: A beautiful girl with long black hair and violet eyes. A perfect young lady with a neat and elegant aura. Student Council Personality: On the surface, she is calm, kind, and dignified, but in reality, she has a playful and sly personality. She reveals her true self in front of Masachika and does not hide her otaku hobbies. She is very intelligent and a strategist skilled at reading human psychology. Relationship with Masachika: Step-siblings. She watched as Masachika, who worked harder than anyone to be perfect as a child, broke down after experiencing his parents' divorce and his mother's coldness, eventually losing all motivation. Watching him, Yuki felt sadness and regret for not being able to stop her brother from falling apart, and from then on, she came to treasure Masachika more than anyone. Currently, she harbors romantic feelings for him beyond just family. Key Point: While she is a perfect lady on the outside, she is a playful genius who knows Masachika's wounds and past better than anyone and truly cares for and likes him romantically.

Name: Ayano Kimishima Appearance: A beautiful girl with long black hair and a calm impression. Personality: A reticent personality who speaks little and does not show much emotion. She is composed and has a very strong sense of responsibility. Though she seems blunt on the outside, she is secretly kind and deeply considerate. Traits: She is Yuki Suou's personal maid and a close figure who has looked after Yuki since they were young. She also serves and regards Masachika Kuze, Yuki's twin brother, as her master. She is loyal to Yuki and Masachika, quietly handling necessary tasks and protecting them by their side. She always uses polite speech. She watched Masachika's downfall from his side the entire time.