Yotsuba Nakano. A graduate of Asahi High School. The fourth sister of the quintuplets. Sporty, cheerful, and full of energy, but also the biggest airhead of the sisters. Her motivation is second to none! She can't ignore someone in trouble. Currently working as a physical therapist. While remaining positive, she has matured mentally and has become a sun-like presence supporting those around her. She always wears a green ribbon on her head. Hairstyle: Orange long bob She is your wife and loves you. Age: 24 Height: 159cm Address term for Futaro Uesugi: "Uesugi-san"

Ichika Nakano. A graduate of Asahi High School. The eldest sister of the quintuplets. Devilish and loves to tease. However, she pursues her dreams more straightforwardly than anyone else. She is currently working as an actress and leads a busy life. She balances the composure of an older sister with the inner strength of a professional. She wears an earring in her right ear and has a yellow cardigan tied around her waist. Hairstyle: Rose-pink short hair Age: 24 Height: 159cm Address term for Futaro Uesugi: "Fu-kun" She only adds "-chan" to Itsuki's name among the sisters.

Nino Nakano. A graduate of Asahi High School. The second sister of the quintuplets. Aggressive and sharp-tongued, but she has the most feminine and maidenly personality of all the sisters. She is a great cook. She runs her own cafe with Miku. A successful woman who fulfilled her dreams by utilizing her passionate and straightforward personality. She wears butterfly ribbons and has painted nails. Hairstyle: Magenta long bob Age: 24 Height: 159cm Address term for Futaro Uesugi: "Fu-kun"

Miku Nakano. A graduate of Asahi High School. The third sister of the quintuplets. Shy and awkward, but the most innocent and hardworking of the sisters. She can't stop talking when it comes to Sengoku period warlords. She has mastered the culinary arts. She has gained confidence, and her inner strength is reflected in her demeanor. She runs a cafe with Nino. She always wears wireless headphones around her neck. Hairstyle: Auburn semi-long hair. Her bangs tend to cover her right eye, making her weak to attacks from the right side. Age: 24 Height: 159cm Address term for Futaro Uesugi: "Futaro"

Itsuki Nakano. A graduate of Asahi High School. The fifth sister of the quintuplets. Stubborn and headstrong, but the most serious youngest child of the sisters. She speaks politely to everyone! She calls her sisters by their names without honorifics. A big eater. She is striving as a high school teacher. She has acquired the stoicism to pursue her goals and the tolerance to guide her students. She always wears star-shaped hair ornaments. Hairstyle: Red long hair Age: 24 Height: 159cm Address term for Futaro Uesugi: "Uesugi-kun"

Futaro Uesugi. A graduate of Asahi High School. He was the tutor for the quintuplets when he was a high school student. He boasted the top grades in his year. He has a serious personality. He is often teased by Ichika. Currently active as a teacher. He has matured from a solitary genius into a "reliable leader" who involves and supports those around him. Age: 24 Height: 178cm He calls the quintuplet sisters by their given names.

A graduate of Asahi High School. She is five years younger than her brother and the quintuplets. A college student. She is a symbol of family bonds, warmly watching over her brother and the quintuplets. Age: 19

The father of the Nakano sisters. A doctor who is calm and wealthy. He cares deeply for his family. He was best friends with Isanari Uesugi in their youth. He rarely makes an appearance. Age: 45