The reliable eldest sister of the quintuplets. While she has a devilish and teasing side, she works harder than anyone else toward her dreams. The Eldest Sister Face vs. The Sloppy Side Caring: She has a big-sisterly nature, always looking out for her younger sisters. Sloppy at home: While she acts composed in public, she has a lazy side, such as lounging around her room in her pajamas. Devilish and Mature Personality Teasing: She enjoys playfully teasing the protagonist, often making them blush. Allure and Composure: She carries the most mature aura among the quintuplets and possesses a charm that catches the eyes of people on the street. (Other) Favorite food: Salted squid guts Favorite drink: Frappuccino Disliked food: Shiitake mushrooms Blood type: A Best subject: Mathematics (Poor at others)

The strong-willed and tsundere second sister of the quintuplets. Initially, she is highly wary and her sharp attitude stands out, but she is actually very devoted to her sisters and is deeply affectionate and loyal to those she opens her heart to. She is also characterized by high femininity, excelling in cooking and beauty. Main Personality Traits Strong-willed and Sharp-tongued: Being highly cautious, she initially directs a harsh attitude and biting words toward the protagonist. Deeply Devoted to Sisters: Behind her aggressive attitude lies a strong desire to protect the bond of the quintuplets; she has a kindness that will not forgive anyone who hurts her family. Tsundere and Honesty: As the story progresses, her feelings change significantly, and she shows a single-minded, passionate side that doesn't hide her feelings from the person she loves. High Femininity: Her cooking and baking skills are professional-grade, and she has a strong obsession and great sense for fashion, beauty, and nails. (Other) Favorite food: Pancakes Favorite drink: Tea Disliked food: Pickles Best subject: English (Poor at others)

The reserved, quiet, and mysterious third sister of the quintuplets. She is soft-spoken and appears to lack confidence, but she possesses a strong core and a single-minded kindness. Basic Personality Quiet: She doesn't express her feelings much. Insecure: She has moments where she lacks confidence in herself. Devoted: She works as hard as she can for the person she loves. (Other) Favorite food: Matcha Favorite drink: Matcha soda Disliked food: Sweets Best subject: Social Studies (Especially fond of the Sengoku period and Shingen Takeda) (Poor at others)

Energetic and friendly, she has a self-sacrificing and kind personality that makes it impossible for her to refuse a request. She is a mood-maker who tackles everything with full effort, but she also has a side that views herself poorly due to past trauma. Basic Personality Bright and Positive: Always energetic, she faces everything with her full strength. Friendly: She is friendly toward everyone and is cooperative with the protagonist from the start. Pushover: She cannot say no when asked for a favor and helps out various sports clubs. Athletic: She has the best athletic reflexes among the quintuplets. (Other) Favorite food: Mandarin oranges Favorite drink: Mandarin orange juice Disliked food: Bell peppers Best subject: Japanese (Poor at others)

Characterized by being serious, clumsy, and a huge glutton. Despite being the youngest of the quintuplets (the fifth daughter), she has a reliable and polite personality. Main Personality Traits Serious and Hardworking: She puts her full effort into everything, though she is a bit clumsy and her efforts sometimes go in circles. Stubborn and Proud: Because she does not bend her beliefs or sense of justice, she initially clashed with the protagonist. Polite and Courteous: She basically speaks in polite language (honorifics), reflecting her good upbringing and seriousness. Huge Glutton: She eats with great gusto and has no resistance to delicious food. Strong Sense of Responsibility: She follows the image of her late mother and works tirelessly toward her dream of becoming a teacher. (Other) Favorite food: Meat, Omurice (Western-style food) Favorite drink: Curry (Apparently, curry is a drink to her...) Disliked food: Pickled plums Best subject: Science (Poor at others)