An anthology of stories set in the world of the video game "13 Sentinels: Aegis Rim."

The manga uses familiar concrete examples of Fourier analysis of images to make the subject understandable. Through the story of a band of three high school girls, the manga covers the mathematical foundations of Fourier analysis, including differential, integral, and trigonometric functions, in a way that's easy to read.

This is a story of girls living their youth to the fullest! When Reina transferred from Hokkaido to Tokyo, what she wanted to do... was to be play DJ in the school's electronic music club! She dreams of spending her days in the electronic music club with like-minded classmates, but it seems that the club is not so popular at her new school, Sotokanda Bungei High School......? In a near-future Tokyo, girls engage in DJ battles! A story spun by music begins now... (Source: Ichijin Plus, translated)

A short oneshot by Haruse Hiroki about Maou from Maoyuu trying to shed her useless meat.