Toaru Nichijou no Index-san

Toaru Nichijou no Index-san (とある日常のいんでっくすさん) or A Certain Everyday Index-san is the 4th manga series that is based off the Toaru Majutsu no Index franchise. Artwork is done by Mijin Kouka.

It began serialization on Monthly Shōnen Gangan alongside the Toaru Majutsu no Index Manga and the Toaru Majutsu no Index: Miracle of Endymion Manga on September 12, 2013. Two chapters are released every month, one in Monthly Shōnen Gangan, and the other in Gangan Online much later in the month as a webcomic.

The first volume was released on February 22, 2014 and a second volume on October 22, 2014.

Background
The manga follows the adventures of the characters of the world of Toaru Majutsu no Index as they stumble into hilarious shenanigans in 4 panels. Along with many other previews, the first chapter preview of the 4-koma manga can be viewed on the Toaru Kaki no Campaign website.

Characters
These are the characters as they are listed in the official manga page.
 * Index
 * Kamijou Touma
 * Kanzaki Kaori
 * Stiyl Magnus
 * Tsuchimikado Maika
 * Tsukuyomi Komoe
 * Misaka Mikoto
 * Shirai Kuroko
 * Uiharu Kazari
 * Saten Ruiko
 * Konori Mii
 * Himegami Aisa

Chapters

 * Volume 01 (Chapters 01-11)
 * Volume 02
 * Chapter 12
 * Chapter 13
 * Chapter 14
 * Chapter 14.5
 * Chapter 15
 * Chapter 16
 * Chapter 17
 * Chapter 18
 * Chapter 19
 * Chapter 20
 * Chapter 21
 * Chapter 22
 * Chapter 23
 * Chapter 24
 * Chapter 25
 * Chapter 26
 * Chapter 27