Story and art by: Atto
Release date: September 12, 2017
Seventh grader at Asahigaoka Branch School. Uses a green/red memorization ruler (which blocks the red answers in the textbook). Never once has she used it as originally intended.
First grader, the youngest of the five students at Asahigaoka Branch School. Uses an orthodox plastic ruler Also uses it for arithmetic.
Natsumi’s older sister, eighth grader at Asahigaoka Branch School. Uses a bamboo ruler. A gem that she inherited from her mother, it’s been passed down through the generations of the Koshigaya family.
Fifth grade transfer student from Tokyo. Uses an isosceles triangle ruler from a ruler set. It was selected with balance in mind.