Tall and masculine. At the beginning of the series, Yoshino is a fifth-grader in Shuuichi’s class. Otherwise known as Takatsuki-kun by their classmates, Yoshino expresses a desire to be male and usually refrains from dressing in traditionally feminine clothes such as skirts or dresses, in spite of their mother’s insistence on buying them. Shortly after meeting and becoming friends with Shuuichi, Yoshino cuts their hair to a very short, boyish style, giving them the appearance of a boy their age, especially when they dress in a male school uniform. Like Shuuichi, Yoshino becomes increasingly concerned and resentful about their changing body due to puberty. They buy a binder to flatten their chest so they do not have to wear a bra.
While Yoshino would like to dress and act like a boy all the time, they usually abstain from doing anything overt which would draw attention to themselves such as going to school in a male uniform once they begin junior high. However, they do on occasion dress in a male school uniform and go to neighboring cities presenting as male. During one such time, they enjoy the fact that they are hit on by an older woman. Yoshino wants to look “cool” — wearing clothes that make them look less like a girl. When teased by others, Yoshino is prone to getting emotional and is also known to get violent on occasion. Yoshino takes up an interest in basketball after entering junior high school and joins the girls’ basketball club with Chizuru Sarashina. In junior high, Yoshino grows their hair out after a comment by Saori but later cuts it back again to a short, boyish style.