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Aizawa Natsuki
Kanji 相沢夏輝
Romaji Aizawa Natsuki
Age 15-16
Gender Female
Occupation Student
First Appearance
Debut Episode 1 (anime)
Chapter 1 (manga)
Voice Actress/Actor
Seiyuu Yuuko Sanpei

Aizawa Natsuki is a supporting female character in the Hiyokoi anime special and manga series. She is good friends with Nishiyama Hiyori and Hirose Yuushin. Natsuki is voiced by Yuuko Sanpei.


A few of her classmates say that she looks like she got her heart broken because of her short hair. In truth, Natsuki did get her heart broken when she found out that her teacher in middle school (who she had a crush on) was getting married.


Natsuki has short orange hair and brown eyes. She grew out her hair when she had a crush on her teacher in the last year of middle school. After learning he was married, she cut it off. Natsuki decided that she will only grow her hair when she has found someone that she loves.


Natsuki is usually a cheery and happy-go-lucky person. She loves cute things and is one of the people who think Hiyori is cute. She is protective of Hiyori and is seen threatening Yuushin in a few instances. She is also very tomboyish and is therefore extremely popular with girls, even more than many of the boys. She is often treated as a boy.


Hirose Yuushin (広瀬結心): They have been in the same class since middle school and is good friends with him even though she is seen threatening him a few times when it involves Hiyori.

Nishiyama Hiyori (西山ひより): Natsuki finds Hiyori cute and is very protective of her, especially from Yuushin. However, when Hiyori and Yuushin begin dating, she cries for them.