Song(s) How-To Sekai Seifuku
Illust by: Sidu
Physical Features
Hair color Before How-To Sekai Seifuku events : Black

After : Orange

Eye color Saturated cyan
Gender Female
Status Alive
Race Human
Friends Tsuji, Yamaguchi, Tanaka, E
I was no longer hearing nothing but my own voice.


Azuma is a girl who appears to be a young adult. She has short black hair, which is dyed in a orange color and saturated cyan eyes. She has hair clips arranged in an X pattern on the sides of her hair. She wears a military uniform with a red armband, as well as a pair of black gloves and a grey skirt. She occasionally wears a surgery mask.

As a student before the events of How-to Sekai Seifuku, she wears a generic black and white sailor seifuku. Her hair was also straight and dark, as well as a bit longer.


Azuma is a girl who appeared as a main character in the album "Sekai Seifuku". She also appeared in the How-to Sekai Seifuku PV. 

Like Tsuji, she was probably bullied at school. When she was enrolled in high school, she was a soft and sweet girl, but after the events of How-to Sekai Seifuku, she became cold and cool.

A popular theory about her is that she actually shot out her school with Tsuji and became a terrorist at the end of the song.


  • She often wears a surgery mask.
  • She's always armed with a rifle.
  • She constantly critiques Tsuji.
  • Since Tsuji seems to know Yamaguchi, Tanaka, and, to an extent, Mamoru, we can assume Azuma knows them too.
  • She also knows E, as in one of Sidu's drawings of him, she is speaking offscreen about him.
  • She's also victim of the popular joke in the fandom where she's teased because of her lack of eyebrows in her orange-haired version, but not as often as Tsuji.


Tsuji and azuma rough sketch

Rough sketches of Tsuji and Azuma by Sidu.

Tsuji and azuma summertime

Tsuji and Azuma during the summertime.

Kuroazuma sidu

KuroAzuma/Azuma before her change in the video, drawn by Sidu.