Yotsuba Nakano

The fourth daughter of the five sisters. She is characterized by her bob cut and rabbit-themed ribbon. Her image color is green. She calls Fuutarou "Uesugi-san." Among the quintuplets, she excels in Japanese language. She is bright and optimistic, enjoys helping others, and has a kind-hearted nature that makes it hard for her to refuse requests. However, she also has a side that is not so innocent, such as not revealing her true feelings and lacking self-confidence. She speaks politely to those outside her family. She has the worst grades among the sisters and is described by Fuutarou as "motivated and reliable but the biggest troublemaker." Her thoughts and tastes are childish, and according to Ichika, she still wears underwear from her elementary school days. She has very high athletic ability and is often asked to help out in the girls' basketball and track teams, showing such impressive performance that she is asked to join officially, but sometimes this interferes with her studies. Among the sisters, she has always been friendly towards Fuutarou and has never opposed him, though she does make harsh remarks. However, as she spends more time with him, Fuutarou's presence becomes more significant to her, and she develops a desire to learn from him. During a retest at Kurobara Girls' School, she was the only one among the sisters to fail, and although she was supposed to transfer schools alone, the other sisters accompanied her out of concern, which made her feel guilty towards them. But after Fuutarou taught her that there are things only Yotsuba can do and that she can be of help to her sisters, she gained confidence in herself. After advancing to the third year, she starts a part-time job in cleaning.