Collection published by Kadokawa of the chapters of the Twitter manga made by Kumaru Sanka. This volume contains chapters of "Kyojiri no Nirugame-chan to Usami-kun", "Doya Kawaunchiku Kanojo-chan", and "Tenshi na Tenkousei-chan to Kyonyuu Kyoufushou-kun".

Includes:
1. Prologue
2-17. Kyojiri JK Nirugame-chan...